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ASHRAE Guideline 20-2010 Documenting HVAC&R Work Processes and Data Exchange Requirements, 2010
- ASHRAE Guideline 20-2010 [Go to Page]
- Foreword
- 1. Purpose
- 2. Scope
- 3. Definitions
- 4. Process Overview
- 4.1 Using Guideline 20
- 4.2 Contributing to a Use Case. Individuals or groups can contribute to the development of a use case in a variety of ways:
- 4.3 Keeping Up to Date with GPC 20 Activities. There are several ways to follow or participate in ongoing GPC 20 activities:
- 4.4 Benefit to ASHRAE and Its Members. This guideline benefits ASHRAE members by initiating and facilitating a process by which HVAC&R professionals can improve the quality, efficiency, and profitability of their practice by
- 5. Major Objectives of the Guideline 20 Process
- 5.1 Documenting Use Cases. Section 6 describes a detailed method for documenting use cases. This method has been designed to be accessible to HVAC&R professionals (domain experts) rather than data modeling, software development, or systems engineerin...
- 5.2 Archiving Use Case Documents. Use case documents will be archived on the GPC 20 Web site.1 Working copies of use case documents under development will be accessible to members of that use case workgroup only. Draft use case documents will be acce...
- 5.3 Extracting and Archiving Use Case Data Dictionary Documents. Definitions of actors, data groups, and data elements contained in completed use case documents will be extracted and collated into publicly accessible data dictionary documents so they...
- 5.4 Data Modeling Review of Use Cases. GPC 20 will collaborate with data modeling experts to review completed use case documents. This activity is necessary to ensure coverage of the domain expert data exchange requirements within existing BIMs, to m...
- 5.5 Promoting Software Implementation of Use Cases. GPC 20 will work to promote the implementation of use case data exchange capabilities in software tools commonly used by HVAC&R professionals. Actual implementation efforts are currently beyond the ...
- 6. Procedure for Developing Use Cases
- 6.1 Use Case Concept. The concepts of a use case and a variety of formal methods for documenting one have evolved from systems engineering and software development techniques. In those contexts, a use case is a description of the behavior of a system...
- 6.2 Use Case Name. The name is a brief descriptive title for the use case. Following Guideline 20 conventions, a use case name also includes a code that identifies the building life- cycle phase within which the use case process occurs and a sequenti...
- 6.3 Use Case Purpose. The purpose for a use case is a high- level description of the process that is the focus of the use case and of the key goals of performing that process. This section should be concise and should focus on the overall goals of th...
- 6.4 Use Case Description. The description section of a use case is a more detailed portrayal of the overall process that is the focus of the use case and the key activities involved in its performance. The description sets the context for identifying...
- 6.5 Use Case Actors. The actors section of a use case identifies the key participants that collaborate in performing the process. Actors can include individual professions, job functions, organizations, data/information sources, software applications...
- 6.6 Use Case Activities. The activities section of a use case identifies and briefly describes the sequence of key tasks that are performed in accomplishing the overall process. Thinking through and formally documenting this sequence is meant to begi...
- 6.7 Use Case Data Transactions. One alternative method of documenting activity sequences that can serve to more clearly focus attention on the exchange of data groups between actors is to create a table of data transactions (see Table 4). Each transa...
- 6.8 Use Case Data Groups. The primary goal of elaborating use case activities and data transactions is to systematically identify key data groups of information that must be exchanged between actors to accomplish the activities. This section of use c...
- 6.9 Use Case Data Elements. The final step in authoring a use case is to document detailed data elements that comprise each identified data group. The process described in this Guideline is designed to be accessible to building industry practitioners...
- 7. References [Go to Page]
