Google Calendar 12.2011
Evaluation
Ratings can take the form '+' which indicates that a particular tool or language provides direct support for the pattern involved, '+/-' which indicates that some limitations exists regaring direct support, and '-' which indicates that no direct support is provided. If support is not specified this is indicated by the label '0'.
| Pattern | Design Choice | Score | Comment | |||
| System-specific Design Choices | A[b,c], B[a*,b*] | +/- | partially supported | |||
| A | Parameters of a pattern may be set at | a | At build-time | - | not applicable | |
| b | At instantiation time | + | When a "process is created" all the activities are added as tasks or appointments that is the instantiation time | |||
| c | At run-time | + | Parameters of tasks and appointments can be modified at any time | |||
| B | Time parameters can be specified in different time granularities | a | Basic | +/- | Cycles support Day, Week, Month and Year. Hour and Minute are only supported for Durations | |
| b | System-defined | +/- | Working Days (needs clarification, granularity vs. Reoccurrence pattern) | |||
| c | User-defined | - | not supported | |||
| TP1 | Time Lags between two Activities | — | - | No constraints on time lags between activities supported | ||
| D | There are three kinds of restrictions | a | Minimum value | - | ||
| b | Maximum value | - | ||||
| c | Time interval | - | ||||
| E | Time lags can be realized based on four different time relations | a | Start-Start | - | ||
| b | Start-End | - | ||||
| c | End-Start | - | ||||
| d | End-End | - | ||||
| TP2 | Durations | C[a], D[b] | +/- | partially supported for single activities | ||
| C | Patterns can be applied to different process elements | a | Single activity | + | appointments always have a duration | |
| b | Activity set | - | not supported | |||
| c | Process model | - | concept does not exist | |||
| d | Set of process instances | - | concept does not exist | |||
| D | There are three kinds of restrictions | a | Minimum value | - | not supported | |
| b | Maximum value | + | supported by assigning an end-date to an appointment | |||
| c | Time interval | - | not supported | |||
| TP3 | Time Lags between Arbitrary Events | — | - | No events supported | ||
| D | There are three kinds of restrictions | a | Minimum value | - | ||
| b | Maximum value | - | ||||
| c | Time interval | - | ||||
| TP4 | Fixed Date Elements | C[a], F[a*,d] | +/- | partally supported for activities | ||
| C | Patterns can be applied to different process elements | a | Single activity | + | supported as tasks or appointments | |
| c | Process model | - | concept does not exist | |||
| F | Patterns can restrict three dates of a process artifact | a | Earliest start date | +/- | start date for appointments (no support for tasks) | |
| b | Latest start date | - | not supported (reminders can only be prior to earliest start date) | |||
| c | Earliest completion date | - | not supported | |||
| d | Latest completion date | + | due date for tasks, end date for appointments | |||
| TP5 | Schedule Restricted Element | — | - | No constraints on activity dates supported | ||
| C | Patterns can be applied to different process elements | a | Single activity | - | ||
| c | Process model | - | ||||
| F | Patterns can restrict three dates of a process artifact | a | Earliest start date | - | ||
| b | Latest start date | - | ||||
| c | Earliest completion date | - | ||||
| d | Latest completion date | - | ||||
| TP6 | Time Based Restrictions | — | - | No relations between activites supported, no constraints on activity dates supported | ||
| G | Time Based Restrictions can be applied to different types of process artifacts | a | activities within same process instance | - | ||
| b | activities within different process instances | - | ||||
| c | Instances of a process or group of processes | - | ||||
| H | There are two kinds of restrictions | a | Minimum number of executions | - | ||
| b | Maximum number of executions | - | ||||
| I | There are two types of restrictions which can be expressed by Time Based Restrictions | a | Number of concurrent executions | - | ||
| b | Number of executions per time period | - | ||||
| TP7 | Validity Period | — | - | No constraints on activity dates supported | ||
| C | Patterns can be applied to different process elements | a | Single activity | - | ||
| c | Process model | - | ||||
| F | Patterns can restrict three dates of a process artifact | a | Earliest start date | - | ||
| b | Latest start date | - | ||||
| c | Earliest completion date | - | ||||
| d | Latest completion date | - | ||||
| TP8 | Time Dependent Variability | — | - | There is no control-flow | ||
| J | There are different time aspects which may be considered by an instance of this pattern | a | Execution time of an activity / process instance | - | ||
| b | Time lags between activities / events | - | ||||
| TP9 | Cyclic Elements | D[a], E[a], K[a], L[a] | +/- | partially supported | ||
| D | There are three kinds of restrictions | a | Minimum value | + | as all dates are considered as earliest start there are only minimum values supported | |
| b | Maximum value | - | not supported | |||
| c | Time interval | - | not supported | |||
| E | Time Lags can be realized based on four different time relations | a | Start-Start | + | create new task every n days (weeks, etc.) | |
| b | Start-End | - | not supported | |||
| c | End-Start | - | not supported | |||
| d | End-End | - | not supported | |||
| K | Cyclic Elements may restrict the time lag between | a | two directly succeeding iterations | + | supported | |
| b | two subsequent activity instances belonging to arbitrary iterations | - | not supported | |||
| L | Time Lag between cycles | a | is fixed | + | supported | |
| b | may vary | - | not supported (no evaluation of any "formula" possible) | |||
| TP10 | Periodicity | — | - | not supported | ||
| M | The Number of cycles is | a | fixed / dynamic number of iterations | - | not supported | |
| b | depends on time lag and end date | - | not supported | |||
| c | depends on exit condition | - | not supported | |||