Flexibility and evolution in process-aware information systems: all problems solved ?
نویسنده
چکیده
1. Current situation and state of the art. As surveys [RRD04a, SMR08] and books [RW12] show, flexibility and evolution in PAIS cover several dimensions ranging from design time flexibility (by underspecification or based on declarative models), runtime flexibility where we can distinguish between “foreseen” exceptions (to be dealt with by compensation or rollback) and “unforeseen” exceptions (dealt with by, e.g., ad-hoc changes of single process instances) to process evolution (meaning the migration of running process instances after changing the process schema). In addition, different kinds of flexibility might arise in interplay [RRD04b]. But not only process models and instances might be subject to change, also other aspects of the PAIS can undergo adaptations such as the organizational structures and access rules [RR07].
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