Mixed models explicitly assume more than one type of element as the
basis for system specification, and go on to define the relationships
among these elements. One example of a mixed model classifies office
elements into three sub-models. One sub-model specifying the data
related to the office, the second specifying the operations and
activities in the office, and the third sub-model specifying both the
normal evolution of office work, and the possible structural
modifications of office tasks. When compared to the other models,
the mixed model provides a more complete specification of different
types of the fundamental elements in the office.
Office Analysis Methodology (OAM)
This methodology is based on the analysis of the activities performed
in the organization. It focuses on the first two
phases of OIS design: The Requirements Analysis phase, and Requirements
Specifications phase.
The goal of OAM is to understand office work in terms of functions,
activities, flows, tasks, and so on. The office analysis process
investigates why functions are performed, what they do, and how they
are implemented. The methodology is directed to the analysis of semi-structured
problems at a managerial level in order to identify the business
goals of the organization.
Office functions are examined top-down; the office manager and
planner are interviewed first, and then office activities are examined
in greater detail, following the office hierarchy. In contrast, the
integration of the office system with the organization and the other
systems is performed bottom-up. The results of the requirements
analysis phase are specified in a high-level and problem-oriented
language called Office Specification Language (OSL). This description
is implementation independant, emphasizing office functions rather than
specific operational tasks.
Here is the general schema of OAM:
- Meet with the office manager
- Organizational context and reporting relationships
- Functions and resources of the office
- DIdentification of conceptual objects and procedures
- Identification of key personnel
- Produce initial procedure descriptions
- Conceptual objects
- Core procedure steps and major alternate control paths
- Inputs and outputs
- Databases
- Environment and special equipment
- Develop and analyze a draft description
- Examine for inconsistency and incompleteness
- Construct list of exception possibilities
- Iterate the interview process
- Circulate draft descriptiogn
- Resolve conflicts and ambiguities
- Investigate exception-handling procedures
- Watch for ad hoc decision making
- Review the analysis with the manager
- Validate intentions behind each procedure
- Clarify what happens at interfaces with other offices
- General exception handling
- Finalize the office description
Other Office Automation Links
About the Office Automation Systems
Interpersonal Computing and Technology:Vol2,No3
Collaborative Information Retrieval: Gopher from MOO
Automation Can Help To Avoid Malpractice
Technology Management: Three Keys To Success
References
Teger, S.L. (1983). Factors impacting the evolution of office automation.
Proceedings of the IEEE. pp. 503-511.
Panko, R.R. (1984). 38 offices: analysing needs in individual offices.
ACM Transactions on Office Information Systems. pp. 226-234.
Bracchi, G. & Pernici, B. (1984). Design requirements of office systems.
ACM Transactions on Office Information Systems. pp. 151-170.
Mumford E. (1986). The Office Of the Future. Computer Bulletin
Christie B., Gardiner M. (1986). Office Systems. Information
Technology and People. pp. 85-102. F. Blackler &
D. Osborne.
Hirscheim, R.A. (1986). Understanding the Office: A Social-Analytical
Perspective. ACM Transactions On Office Information
Systems. pp. 331-344.
Rodney Brassard
Last modified April 9, 1995