Execution specification 2
![Execution specification 2, execution specification,](https://conceptdraw.com/a3321c3/p4/preview/640/pict--execution-specification-2-vector-stencils-library-sequence-diagram)
Combined fragment - Weak sequencing
![Combined fragment - Weak sequencing, weak sequencing combined fragment, interaction operator seq,](https://conceptdraw.com/a3321c3/p7/preview/640/pict--combined-fragment-weak-sequencing-vector-stencils-library-sequence-diagram)
Combined fragment - Alternatives
![Combined fragment - Alternatives, alternative combined fragment, interaction operator alt, alternatives,](https://conceptdraw.com/a3321c3/p8/preview/640/pict--combined-fragment-alternatives-vector-stencils-library-sequence-diagram)
Combined fragment - Option
![Combined fragment - Option, option combined fragment, interaction operator opt,](https://conceptdraw.com/a3321c3/p9/preview/640/pict--combined-fragment-option-vector-stencils-library-sequence-diagram)
Combined fragment - Break
![Combined fragment - Break, break combined fragment, interaction operator break,](https://conceptdraw.com/a3321c3/p10/preview/640/pict--combined-fragment-break-vector-stencils-library-sequence-diagram)
Combined fragment - Parallel
![Combined fragment - Parallel, parallel combined fragment, interaction operator par,](https://conceptdraw.com/a3321c3/p11/preview/640/pict--combined-fragment-parallel-vector-stencils-library-sequence-diagram)
Combined fragment - Strict sequencing
![Combined fragment - Strict sequencing, strict sequencing combined fragment, interaction operator strict,](https://conceptdraw.com/a3321c3/p12/preview/640/pict--combined-fragment-strict-sequencing-vector-stencils-library-sequence-diagram)
Combined fragment - Critical region
![Combined fragment - Critical region, critical region combined fragment, interaction operator critical,](https://conceptdraw.com/a3321c3/p14/preview/640/pict--combined-fragment-critical-region-vector-stencils-library-sequence-diagram)
Combined fragment - Negative
![Combined fragment - Negative, negative combined fragment, interaction operator neg,](https://conceptdraw.com/a3321c3/p15/preview/640/pict--combined-fragment-negative-vector-stencils-library-sequence-diagram)
Combined fragment - Assertion
![Combined fragment - Assertion, assertion combined fragment, interaction operator assert,](https://conceptdraw.com/a3321c3/p16/preview/640/pict--combined-fragment-assertion-vector-stencils-library-sequence-diagram)
Combined fragment - Ignore
![Combined fragment - Ignore, ignore combined fragment, interaction operator ignore,](https://conceptdraw.com/a3321c3/p17/preview/640/pict--combined-fragment-ignore-vector-stencils-library-sequence-diagram)
Combined fragment - Consider
![Combined fragment - Consider, consider combined fragment, interaction operator consider,](https://conceptdraw.com/a3321c3/p18/preview/640/pict--combined-fragment-consider-vector-stencils-library-sequence-diagram)
State invariant / Continuations
![State invariant / Continuations, continuation, state invariant,](https://conceptdraw.com/a3321c3/p19/preview/640/pict--state-invariant-/-continuations-vector-stencils-library-sequence-diagram)
Message, asynchronous signal
![Message, asynchronous signal, asynchronous signal, message,](https://conceptdraw.com/a3321c3/p27/preview/640/pict--message,-asynchronous-signal-vector-stencils-library-sequence-diagram)
Message, synchronous call
![Message, synchronous call, synchronous call, message,](https://conceptdraw.com/a3321c3/p28/preview/640/pict--message,-synchronous-call-vector-stencils-library-sequence-diagram)