Products Solutions Samples Buy
✕
This site uses cookies. By continuing to browse the ConceptDraw site you are agreeing to our Use of Site Cookies.
Try ConceptDraw Free

Educational Technology Tools

Educational Technology Tools *
What are the favorite educational technology tools and techniques for teachers? Of course these are pictures, images and education infographics! ConceptDraw DIAGRAM software supplied with Education Infographics Solution from the Business Infographics Area provides powerful drawing tools to help design the education infographics of any complexity.

Metro Maps

Metro Maps *
ConceptDraw DIAGRAM software enhanced with Metro Map Solution from the Maps Area of ConceptDraw Solution Park provides extensive drawing tools for fast and easy creating various metro maps, route maps, transport schemes, metro path maps, subway train maps, and many other types of maps.
"A hand tool is any tool that is not a power tool – that is, one powered by hand (manual labour) rather than by an engine. Some examples of hand tools are hammers, spanners, pliers, screwdrivers and chisels. Hand tools are generally less dangerous than power tools." [Hand tool. Wikipedia]
"A power tool is a tool that is actuated by an additional power source and mechanism other than the solely manual labour used with hand tools. The most common types of power tools use electric motors. ...
Power tools are used in industry, in construction, in the garden, for housework tasks such as cooking, cleaning, and around the house for purposes of driving (fasteners), drilling, cutting, shaping, sanding, grinding, routing, polishing, painting, heating and more.
Power tools are classified as either stationary or portable, where portable means hand-held. Portable power tools have obvious advantages in mobility." [Power tool. Wikipedia]
The illustration example "7 tools that should be in every home" was created in the ConceptDraw PRO diagramming and vector drawing software using the Manufacturing and Maintenance solution from the Illustration area of ConceptDraw Solution Park.
Infographics
Infographics, tape-measure, tape measure, screwdriver, saw, pliers, nail, hammer, drill,
Used Solutions
The vector stencils library "Professions" contains 58 people clipart images of different professions you can use in your presentations, illustrations and infographics.
"Electronic clip art is available in several different file formats. It is important for clip art users to understand the differences between file formats so that they can use an appropriate image file and get the resolution and detail results they need.
Clip art file formats are divided into 2 different types: bitmap or vector graphics. ...
In contrast to the grid format of bitmap images, Vector graphics file formats use geometric modeling to describe an image as a series of points, lines, curves, and polygons. Because the image is described using geometric data instead of fixed pixels, the image can be scaled to any size while retaining "resolution independence", meaning that the image can be printed at the highest resolution a printer supports, resulting in a clear, crisp image. Vector file formats are usually superior in resolution and ease of editing as compared to bitmap file formats, but are not as widely supported by software and are not well-suited for storing pixel-specific data such as scanned photographs. In the early years of electronic clip art, vector illustrations were limited to simple line art representations." [Clip art. Wikipedia]
The clip art example "Professions - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the People solution from the Illustration area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ illustrations-people
Builder 1
Builder 1, builder, man,
System administrator
System administrator, system administrator,
Worker of conveyor
Worker of conveyor, worker, conveyor, man,
Clerk 1
Clerk 1, clerk, woman,
Clerk 2
Clerk 2, clerk, man,
Student 2
Student 2, student, girl,
Student 3
Student 3, student, guy,
Student 1
Student 1, student, guy,
Dispatcher 1
Dispatcher 1, dispatcher, man,
Accountant
Accountant, accountant,
Gardener
Gardener, gardener, man,
Lawyer
Lawyer, lawyer,
Jurist
Jurist, jurist,
Judge
Judge, judge,
Consultant
Consultant, consultant, adviser, counselor, advisor, consultor, counsellor,
Manager
Manager, manager, man,
Director
Director, director, man,
Programmer
Programmer, programmer,
Architect
Architect, architect, man,
Pilot
Pilot, pilot, man,
Policeman
Policeman, policeman, man,
Secretary
Secretary, secretary, woman,
Security officer
Security officer, security officer, man,
Clerk 3
Clerk 3, clerk, man,
Musician
Musician, musician,
Presenter
Presenter, presenter,
Athlete
Athlete, athlete, sportsman,
Artist
Artist, artist,
Announcer
Announcer, announcer, man,
Photographer
Photographer, photographer,
Hairdresser
Hairdresser, hairdresser,
Florist
Florist, florist,
Spaceman
Spaceman, spaceman, astronaut,
Engineer
Engineer, engineer, man,
Reporter
Reporter, reporter, woman,
Tailor
Tailor, tailor,
Dispatcher 2
Dispatcher 2, dispatcher, woman,
Biologist
Biologist, biologist,
Chemist
Chemist, chemist,
Dentist
Dentist, dentist,
Priest
Priest, priest,
Soldier
Soldier, soldier, man,
Doctor
Doctor, doctor, physician, medic, medical man, medical adviser,
Driver
Driver, driver, man,
Carpenter
Carpenter, carpenter, man,
Fireman
Fireman, fireman, man,
Seaman
Seaman, seaman, man,
Builder 2
Builder 2, builder, man,
Postman
Postman, postman, man,
Miner
Miner, miner, man,
Waiter
Waiter, waiter,
Cleaner
Cleaner, cleaner, man,
Cashier
Cashier, cashier,
Shop assistant
Shop assistant, shop assistant,
Cook
Cook, cook,
Flight attendant
Flight attendant, flight attendant, hostess, air hostess, woman,
Teacher
Teacher, teacher, woman,
Hall porter
Hall porter, hall porter,
Used Solutions

Baseball Diagram – Colored Baseball Field

Baseball Diagram – Colored Baseball Field
Extending ConceptDraw DIAGRAM software with the Baseball solution from the ConceptDraw Solution Park you receive a complete set of libraries, templates and samples allowing to draw baseball diagrams in seconds. You can start from a template, change positions and get ready diagram in some clicks.
The vector clipart library "Presentation" design elements contains 45 symbols you can use to design your presentation slides and illustrations using the ConceptDraw PRO diagramming and vector drawing software.
"Although some think of presentations in a business meeting context, there are often occasions when that is not the case. For example, a non-profit organization presents the need for a capital fund-raising campaign to benefit the victims of a recent tragedy; a school district superintendent presents a program to parents about the introduction of foreign-language instruction in the elementary schools;an artist demonstrates decorative painting techniques to a group of interior designers; a horticulturist shows garden club members or homeowners how they might use native plants in the suburban landscape; a police officer addresses a neighborhood association about initiating a safety program. ...
A study done by Wharton School Of Business showed that the use of visuals reduced meeting times by 28 percent. Another study found that audiences believe presenters who use visuals are more professional and credible than presenters who merely speak. Other research indicates that meetings and presentations reinforced with visuals help participants reach decisions and consensus more quickly." [Presentation. Wikipedia]
The clip art example "Design elements - Presentation symbols" is included in the Presentation Clipart solution from the Illustration area of ConceptDraw Solution Park.
Presentation clip art and pictograms
Presentation clip art and pictograms, presentation,
Used Solutions
The vector stencils library "Funny aquatic fauna" contains 8 cartoon clipart images of underwater animals: whale, dolphin, crab, fish, crocodile, frog, octopus, medusa.
Use it for drawing toys for children.
"A cartoon is a form of two-dimensional illustrated visual art. While the specific definition has changed over time, modern usage refers to a typically non-realistic or semi-realistic drawing or painting intended for satire, caricature, or humor, or to the artistic style of such works. An artist who creates cartoons is called a cartoonist." [Cartoon. Wikipedia]
The example of cartoon clip art for kids "Funny aquatic fauna - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Artwork solution from the Illustration area of ConceptDraw Solution Park.
Whale
Whale, whale,
Dolphin
Dolphin, dolphin,
Crab
Crab, crab,
Fish
Fish, fish,
Crocodile
Crocodile, crocodile,
Frog
Frog, frog,
Octopus
Octopus, octopus,
Medusa
Medusa, medusa,
Used Solutions

Network Topology Illustration

Network Topology Illustration *
ConceptDraw DIAGRAM is the best software for illustration the network topologies. It's very easy and quickly to design the network topology diagrams of any kinds and complexity in ConceptDraw DIAGRAM diagramming and vector drawing software using the Computer and Networks solution from Computer and Networks area of ConceptDraw Solution Park.
The vector stencils library "Education pictograms" contains 128 education pictograms. Use this flat icon set to design your educational infogram in ConceptDraw PRO diagramming and vector drawing software.
The vector stencils library "Education pictograms" is included in the Education Infographics solution from the Business Infographics area of ConceptDraw Solution Park.
ABC
ABC, ABC,
Apple
Apple, apple,
Artist oil colors
Artist oil colors, artist oil colors,
Artists paint palette
Artists paint palette, artists paint palette,
Atom
Atom, atom,
Baseball
Baseball, baseball, baseball bat, baseball,
Basketball
Basketball, basketball, basketball basket, backboard basketball,
Beaker
Beaker, beaker,
Bell
Bell, bell,
Bicycle
Bicycle, bicycle,
Book - open
Book - open, open book,
Books
Books, books,
Brushes
Brushes, brushes, paintbrush,
Bunsen burner
Bunsen burner, bunsen burner,
Calculator
Calculator, calculator,
Calendar
Calendar, calendar, wall calendars,
CD
CD, cd,
Cell model
Cell model, cell model,
Chemical flask
Chemical flask, chemical flask, conical flask,
Cloud
Cloud, cloud,
Colored paper
Colored paper, colored paper,
Colored pencils
Colored pencils, colored pencils,
Compass
Compass, compass,
Compasses
Compasses, compasses,
Dinosaur skeleton
Dinosaur skeleton, dinosaur skeleton,
Diploma
Diploma, diploma,
DNA double helix
DNA double helix, dna double helix,
Drop
Drop, drop,
Dumbbells
Dumbbells, dumbbells,
Earth
Earth, earth,
Earth's internal structure
Earth's internal structure, earth's internal structure,
Easel
Easel, easel,
Email
Email, email,
Eraser
Eraser, eraser,
Exercise book
Exercise book, exercise book, notebook,
Felt tip pens
Felt tip pens, felt tip pens,
Folders
Folders, folders, paper folder, document folder,
Football
Football, football,
Funnel
Funnel, funnel,
Gears
Gears, gears,
Globe
Globe, globe,
Gouache
Gouache, plastic jars with colored gouache,
Graduation cap
Graduation cap, graduation cap, square academic cap, master's cap,
Grand piano
Grand piano, grand piano,
Grand piano - clipart
Grand piano - clipart, grand piano,
Green blackboard
Green blackboard, green blackboard, school board, teacher pointer, chalk, sponge,
Hourglass
Hourglass, hourglass,
Laptop
Laptop, laptop computer,
Laptop mouse
Laptop mouse, mouse, bluetooth notebook mouse, wireless mobile mouse,
Light bulb
Light bulb, light bulb,
Magnet
Magnet, magnet, u-shaped magnet, horseshoe magnet,
Magnifier
Magnifier, magnifier, loupe,
Marker - black
Marker - black, marker,
Marker - blue
Marker - blue, marker,
Marker - green
Marker - green, marker,
Marker - red
Marker - red, marker,
Marker - white
Marker - white, marker,
Marker - yellow
Marker - yellow, marker,
Medal with ribbon
Medal with ribbon, medal with ribbon,
Metronome
Metronome, metronome,
Microscope
Microscope, microscope,
Moon
Moon, moon,
Music notes
Music notes, music notes, musical symbols, music staff, treble clef,
Notebook
Notebook, notebook, exercise book, drawing block,
Notepad
Notepad, notepad, arrowed callout, ribbon callout,
Paper clips
Paper clips, paper clips, paper clip,
Paper sheet
Paper sheet, paper sheet,
Paper sheet - grid
Paper sheet - grid, grid paper sheet,
Paper sheet - lined
Paper sheet - lined, lined paper sheet,
Paper stickers
Paper stickers, paper stickers,
Parthenon
Parthenon, Parthenon, Athenian Acropolis,
Pen
Pen, pen, ballpen, ball pen,
Pen - fountain
Pen - fountain, fountain pen,
Pencil
Pencil, pencil,
Periodic table
Periodic table, periodic table,
Protractor
Protractor, protractor,
Push pins
Push pins, push pins, push pin,
Robot
Robot, robot,
Round bottom flask
Round bottom flask, round bottom flask,
Rugby ball
Rugby ball, rugby ball, rugby league football, American football,
Ruler
Ruler, ruler,
Scales
Scales, scales,
School backpack
School backpack, school backpack, schoolbag, school bag,
School bus
School bus, school bus,
School satchel
School satchel, school satchel, schoolbag, school bag, portfolio,
Schoolboy - african
Schoolboy - african, schoolboy, pupil,
Schoolboy - asian
Schoolboy - asian, schoolboy, pupil,
Schoolboy - caucasian
Schoolboy - caucasian, schoolboy, pupil,
Schoolboy - indian
Schoolboy - indian, schoolboy, pupil,
Schoolgirl - african
Schoolgirl - african, schoolgirl,
Schoolgirl - asian
Schoolgirl - asian, schoolgirl,
Schoolgirl - caucasian
Schoolgirl - caucasian, schoolgirl,
Schoolgirl - indian
Schoolgirl - indian, schoolgirl,
Scissors and a bottle of glue
Scissors and a bottle of glue, scissors, glue bottle,
Scroll
Scroll, scroll,
Snowflake
Snowflake, snowflake,
Sport cup
Sport cup, sport cup, golden cup, champion cup, winner cup,
Star
Star, star,
Stickers
Stickers, paper stickers,
Stopwatch
Stopwatch, stopwatch,
Sun
Sun, sun,
Tablet computer
Tablet computer, tablet computer,
Teacher with a pointer
Teacher with a pointer, teacher, schoolmarm, teacher pointer,
Teacher - african
Teacher - african, teacher,
Teacher - asian
Teacher - asian, teacher,
Teacher - caucasian
Teacher - caucasian, teacher,
Teacher - indian
Teacher - indian, teacher,
Teacher - woman, african
Teacher - woman, african, teacher, schoolmarm,
Teacher - woman, asian
Teacher - woman, asian, teacher, schoolmarm,
Teacher - woman, caucasian
Teacher - woman, caucasian, teacher, schoolmarm,
Teacher - woman, indian
Teacher - woman, indian, teacher, schoolmarm,
Telescope
Telescope, telescope,
Test tube
Test tube, test tube, test-tube,
Thermometer
Thermometer, thermometer,
To-Do list
To-Do list, to-do list,
Tree leaf - acacia
Tree leaf - acacia, acacia tree leaf,
Tree leaf - birch
Tree leaf - birch, birch tree leaf,
Tree leaf - chestnut
Tree leaf - chestnut, chestnut tree leaf,
Tree leaf - maple
Tree leaf - maple, maple tree leaf,
Tree leaf - oak
Tree leaf - oak, oak tree leaf,
Tree leaf - walnut
Tree leaf - walnut, walnut tree leaf,
Triangle ruler
Triangle ruler, triangle ruler,
Volleyball
Volleyball, volleyball,
Violin
Violin, violin, violin bow, violin bow, violin,
Violin - clipart
Violin - clipart, violin, violin bow,
Wall clock
Wall clock, Wall clock,
Watercolor set
Watercolor set, watercolor set,
World map
World map, world map,
Used Solutions

App to Draw Plans

ConceptDraw DIAGRAM - App to Draw Plans
No special drafting knowledge, painting training, or design learning is required to draw the professional-looking Floor plans in ConceptDraw DIAGRAM software - the best app to draw plans. Draw with ease the plans and drafts for varied buildings and premises. You can design a Building plan, House floor plan, Office layout, Restaurant floor plan, Garden design plan, or Backyard design plan equally simply.

restaurant floor plan, cafe design, cafe decor, cafe interior design Cafe and Restaurant Floor Plans

restaurant floor plan, cafe design, cafe decor, cafe interior design
Restaurants and cafes are popular places for recreation, relaxation, and are the scene for many impressions and memories, so their construction and design require special attention. They must be projected and constructed to be comfortable, pleasant, harmonious, filled with greenery, flowers, colors, emotions, and be prepossessing to relaxation and rest. Cafe and Restaurant Floor Plans solution helps to develop inimitable Cafe and Restaurant Floor Plans, Cafe Interior Design Plans, Restaurant Layouts and Plans.

Cloud computing, Architecture Diagrams, Cloud Computing Architecture, How Cloud Computing Works, amazon cloud computing architecture, introduction to cloud computing architecture Cloud Computing Diagrams

Cloud computing, Architecture Diagrams, Cloud Computing Architecture, How Cloud Computing Works, amazon cloud computing architecture, introduction to cloud computing architecture
The Cloud Computing Diagrams solution extends the functionality of the ConceptDraw DIAGRAM diagramming software with a comprehensive collection of libraries of commonly accepted cloud computing vector stencils to help you to get started designing Cloud Computing Diagrams, Architecture Diagrams and Cloud Computing Architecture Diagrams without effort. This solution lets one professionally depict the way how the cloud computing works, allows giving a powerful introduction to the Cloud computing architecture and Amazon cloud computing architecture, to display the essence of the cloud computing, the main characteristics and classification of the cloud services thanks to the wide variety of predesigned samples and examples.

Business Management Package

Business Management Package is a large set of graphical solutions from the ConceptDraw Solution Park. They are selected to help in solving the business, management, marketing and quality tasks in a best way. It is useful for many management specialists, marketing experts, business specialists, international business experts, IT managers, specialists in managing the business processes, financial specialists, and other business related specialists. Create documents, reports, statistical summaries, describe business processes, build business models for many fields including finance, education, logistic, landscape design, health, cooking, and many more.

Ice Hockey Rink Dimensions

Ice Hockey Rink Dimensions *
Meeting ice hockey rules one should learn ice hockey rink terms, lines, zones etc. ConceptDraw DIAGRAM is an advanced drawing software that allows you produce ice hockey rink depiction of any complexity, from simple sketch drawing to detailed one as on example below.

Education Information

Education Information *
The Education Information is multifariuos and can be often represented in various forms. Еру the most successful ways of presentation the information and data are various illustrations, diagrams and colorful education infographics which you can easily make in ConceptDraw DIAGRAM software extended with Education Infographics Solution from the Business Infographics Area.
The library of vector stencils "Fishbone diagrams" contains 13 symbols for drawing the Ishikawa diagrams using the ConceptDraw PRO diagramming and vector drawing software.
"Ishikawa diagrams were popularized by Kaoru Ishikawa in the 1960s, who pioneered quality management processes in the Kawasaki shipyards, and in the process became one of the founding fathers of modern management.
The basic concept was first used in the 1920s, and is considered one of the seven basic tools of quality control. It is known as a fishbone diagram because of its shape, similar to the side view of a fish skeleton." [Ishikawa diagram. Wikipedia]
"The Seven Basic Tools of Quality is a designation given to a fixed set of graphical techniques identified as being most helpful in troubleshooting issues related to quality. They are called basic because they are suitable for people with little formal training in statistics and because they can be used to solve the vast majority of quality-related issues.
The seven tools are:
(1) Cause-and-effect diagram (also known as the "fishbone" or Ishikawa diagram);
(2) Check sheet;
(3) Control chart;
(4) Histogram;
(5) Pareto chart;
(6) Scatter diagram;
(7) Stratification (alternately, flow chart or run chart)." [Seven Basic Tools of Quality. Wikipedia]
The example "Design elements - Fishbone diagram" is included in the Fishbone Diagrams solution from the Management area of ConceptDraw Solution Park.
Ishikawa diagram symbols
Ishikawa diagram symbols, third level cause, reason, secondary cause, fishbone, effect, cause, category,
Used Solutions

ducation infographics and infograms, Business intelligence dashboards, Business intelligence charts and maps, Bubble diagrams and charts, Spray diagrams, Circle-Spoke diagrams and models, Circle diagrams, Circular arrows diagrams, Circular flow diagrams, Education Package

ducation infographics and infograms, Business intelligence dashboards, Business intelligence charts and maps, Bubble diagrams and charts, Spray diagrams, Circle-Spoke diagrams and models, Circle diagrams, Circular arrows diagrams, Circular flow diagrams,
Education Package is a comprehensive set of multifarious graphical solutions from ConceptDraw Solution Park, collected together in help to ConceptDraw DIAGRAM users working in a field of science, education and training, which is aimed at improving the quality of education and helping to design with ease variety of interesting and colorful educational materials, diagrams, charts and maps. Use it to present the information and knowledge in an interesting, clear, structured and simple form to achieve a success in education and pedagogy, to maintain the interest of students and pupils throughout the whole learning process, at the lectures, lessons and even during independent work with additional materials, to contribute to better perception of scientific information by listeners during the conferences and reports.
The vector stencils library "HR professions" contains 81 professions pictograms.
Use this HR icon set to draw your HR flowcharts, workflow diagrams, process charts and infographics with the ConceptDraw PRO diagramming and vector drawing software.
The HR pictograms library "HR professions" is included in the HR Flowcharts solution from the Management area of ConceptDraw Solution Park.
Accountant
Accountant, accountant, profession icon,
Actor
Actor, actor, profession icon,
Administrator
Administrator, administrator, profession icon,
Announcer
Announcer, announcer, profession icon,
Archaeologist
Archaeologist, archaeologist, profession icon,
Architect
Architect, architect, profession icon,
Artist
Artist, artist, painter, profession icon,
Baker
Baker, baker, profession icon,
Banker
Banker, banker, profession icon,
Bellboy
Bellboy, bellboy, profession icon,
Biologist
Biologist, biologist, profession icon,
Bookkeeper
Bookkeeper, bookkeeper, profession icon,
Builder
Builder, builder, profession icon,
Businessman
Businessman, businessman, profession icon,
Businesswoman
Businesswoman, businesswoman, profession icon,
Call center operator
Call center operator, call center operator, profession icon,
Cameraman
Cameraman, cameraman, profession icon,
Carpenter
Carpenter, carpenter, profession icon,
Cashier
Cashier, cashier, profession icon,
Chef
Chef, chef, chief-cooker, profession icon,
Chemist
Chemist, chemist, profession icon,
Cleaner
Cleaner, cleaner, profession icon,
Clerk
Clerk, clerk, profession icon,
Consultant
Consultant, consultant, profession icon,
Cook
Cook, cook, profession icon,
Dentist
Dentist, dentist, profession icon,
Director
Director, director, producer, profession icon,
Dispatcher
Dispatcher, reporter, dispatcher, profession icon,
Diver
Diver, diver, profession icon,
Doctor
Doctor, doctor, profession icon,
Driver
Driver, driver, profession icon,
Electrical engineer
Electrical engineer, electrical engineer, electrician, profession icon,
Engineer
Engineer, engineer, profession icon,
Environmental engineer
Environmental engineer, environmental engineer, profession icon,
Farmer
Farmer, farmer, profession icon,
Firefighter
Firefighter, firefighter, profession icon,
Fisherman
Fisherman, fisherman, profession icon,
Florist
Florist, florist, profession icon,
Gardener
Gardener, gardener, profession icon,
Graphic designer
Graphic designer, graphic designer, profession icon,
Guide
Guide, guide, profession icon,
Hairdresser
Hairdresser, hairdresser, profession icon,
Lawyer
Lawyer, lawyer, profession icon,
Librarian
Librarian, librarian, profession icon,
Machine operator
Machine operator, machine operator,
Manager
Manager, manager,
Miner
Miner, miner,
Movie director
Movie director, movie director,
Musician
Musician, musician,
Nuclear engineer
Nuclear engineer, nuclear engineer,
Nurse
Nurse, nurse,
Pharmacist
Pharmacist, pharmacist,
Photographer
Photographer, photographer,
Pilot
Pilot, pilot,
Pizza delivery man
Pizza delivery man, pizza delivery man,
Policeman
Policeman, policeman,
Postman
Postman, postman,
Presenter
Presenter, presenter,
Programmer
Programmer, programmer,
Psychologist
Psychologist, psychologist,
Reporter
Reporter, reporter,
Sailor
Sailor, sailor,
Scientist
Scientist, scientist,
Secretary
Secretary, secretary,
Security guard
Security guard, security guard,
Security officer
Security officer, security officer,
Seller
Seller, seller,
Shop assistant
Shop assistant, shop assistant,
Soldier
Soldier, soldier,
Stewardess
Stewardess, stewardess,
Surgeon
Surgeon, surgeon,
System administrator
System administrator, system administrator, profession icon,
Systems engineer
Systems engineer , systems engineer ,
Tailor
Tailor, tailor,
Teacher
Teacher, teacher,
Technical support representative
Technical support representative, technical support representative,
Waiter
Waiter, waiter,
Waitress
Waitress, waitress,
Watchman
Watchman, watchman,
Worker
Worker, worker,
Writer
Writer, writer,
Used Solutions