Böcker utgivna av Cody-Cassidy Press

Case management is a branch of business process management dealing with unstructured and event-driven processes. CMMN is a business-oriented diagramming language standard for creating case models, for both case logic description and execution. Following the author's popular BPMN Method and Style and DMN Method and Style, this book shows how to use CMMN to create case models in which the logic is both clear from the printed diagrams and executable on a business automation platform.Unlike BPMN for structured processes, which adopts the familiar look of swimlane flowcharts, CMMN's diagrams are unfamiliar to most modelers. In addition, CMMN logic is declarative, each task and stage in the model independently defining its own prerequisites. Aimed at business users, the book explains how to use the diagramming notation in a range of modeling styles, including: User-driven, in which what happens next is determined primarily by knowledge worker decisions Event-condition-action (ECA), in which what happens next is determined primarily by business events Hierarchical, in which CMMN stages are used as exclusive states of the case, with a top-level diagram describing the overall case logic and child-level diagrams describing the logic of each stage.On top of the rules of the language defined in the specification, the author adds additional conventions called Method and Style, aimed at ensuring the case logic is clear from the printed diagrams. Many details needed to understand the logic are visible only to modelers with access to the design tool, not to stakeholders in the business who see only what is in the printed diagrams. Method and Style prescribes various additional connectors and labeling conventions that make these logic details visible to all. These conventions are formulated as "style rules" that can be validated in a CMMN tool.The book provides detailed explanation of CMMN's declarative logic patterns, illustrated by examples from the field of Social Care. In addition, it provides an exhaustive list of CMMN Method and Style patterns together with their more familiar BPMN Method and Style equivalents.The book is useful for modelers who need to go beyond BPMN's structured process constraints and for implementers who are interested in using this standard language in their business automation offerings.

BPMN 2.0 is the industry standard diagramming language for business process models. The meaning of the shapes and symbols is defined by a specification, independent of the tool employed. But creating models that communicate the process logic clearly and completely demands more than a dictionary of shapes and symbols. It also requires a methodology for properly structuring the process information and additional best practices specified as "style rules" that can be validated in a tool: Method and Style.Based on training over 4000 students, this book zeroes in on the elements process modelers need to know in order to create Good BPMN: usage of the important shapes and symbols; the Method, a systematic procedure for translating process details gathered in stakeholder workshops into properly structured models that communicate the process logic clearly and completely; and style rules, additional conventions that make the process logic evident from the printed diagrams alone. Chapter 1, What Is BPMN?, discusses key differences between BPMN and traditional flowcharts, and explains the limitations of BPMN. It explains the real meaning of BPMN's most fundamental concepts - activity and process - and the issues that arise when BPM Architecture and other segments of the BPM domain use those terms much more loosely. Chapter 2, BPMN by Example, builds up an order process bit by bit using elements of the Level 1 working set, illustrating basic usage of tasks and subprocesses, start and end events, gateways, pools, and lanes, and message flow, plus the basics of Method and Style, including process levels and end states, with label matching between gateways in the parent level and end states in the child level. Chapter 3, The Method, describes a systematic procedure that deals with the real challenge of process modeling, turning process details gathered from stakeholder workshops into properly structured BPMN that communicates the process logic clearly. Chapter 4, BPMN Style, explains the most important style rules, illustrating both violations and correct BPMN style. Chapter 5, DMN and Decision Tasks, discusses why embedding decision logic in process models as a chain of gateways is Bad BPMN, and how integrating BPMN with the new companion standard DMN fixes the problem. Chapter 6, Parallel Flow, explains proper merging of sequence flows, depending upon whether they are exclusive alternatives, unconditionally parallel, or conditionally parallel. Chapter 7, Events, discusses common usage patterns with Timer, Message, and Error events. Using intermediate events and event subprocesses, eaders learn how to model deadline-triggered actions, wait for a message or a timeout, handle cancellation or update of a process in flight, and use error throw-catch patterns. Chapter 8, Instance Alignment, deals with the spec's requirement that the instance of every activity in a BPMN process must correspond 1:1 with the process instance. Since batching is commonplace in real processes, this chapter discusses various ways to handle it: loop and multi-instance activities, multi-process structures, and non-interrupting event subprocesses. Chapter 9, Becoming Proficient, discusses how to go beyond "book learning" and become really proficient at Good BPMN. It takes practice, testing your understanding, and hands-on experience with real tools.Bruce Silver is the leading provider of BPMN training and certification. He has been providing BPMN training since early 2007 and is regarded as an authority in the field. He was a member of the BPMN 2.0 technical committee in OMG, and his methodandstyle.com website is a popular source of news and commentary about all matters related to BPMN.