Joint application design

From HandWiki

Joint application design (JAD) commonly refers to a process often used in software development, where it is employed throughout the development process. It should involve not only the software development team and their managers, but also managers of potential user companies and the potential users themselves, so that the overall goals and pricepoint and timeline of the final product can be set, existing needs identified, and later in the cycle, user issues identified and corrected.

It may be ancillary to or form part of a dynamic systems development method (DSDM).

Both of these terms relate to processes which can - and should - be a natural part of software development projects of any scale, but there are also management consultant groups which specialise in assisting developers who prefer to outsource the relevant organisation and documentation.

A report of a field study in the Journal of Systems and Software (reference needed) suggested that the three organizations realized modest improvement in systems development outcomes by using the JAD method. JAD use was most effective in small, clearly focused projects and less effective in large, complex projects.

(The following paragraph is meaningless and should be deleted:) "Since 2010, the International Association of Facilitators (IAF) has measured the significance of facilitated workshops using JAD, and found differences in them when compared to ones not using JAD.[1]"

Origin

Joint application is a term originally used to describe a software development process pioneered and deployed during the mid-1970s by the New York Telephone Company's Systems Development Center under the direction of Dan Gielan. Following a series of implementations of this methodology, Gielan lectured extensively in various forums on the methodology and its practices. Arnie Lind, then a Senior Systems Engineer at IBM Canada in Regina, Saskatchewan created and named joint application design in 1974. Existing methods, however, entailed application developers spending months learning the specifics of a particular department or job function, and then developing an application for the function or department. In addition to development backlog delays, this process resulted in applications taking years to develop, and often not being fully accepted by the application users.

Arnie Lind's idea was that rather than have application developers learn about people's jobs, people doing the work could be taught how to write an application. Arnie pitched the concept to IBM Canada's Vice President Carl Corcoran (later President of IBM Canada), and Carl approved a pilot project. Arnie and Carl together named the methodology JAD, an acronym for joint application design, after Carl Corcoran rejected the acronym JAL, or joint application logistics, upon realizing that Arnie Lind's initials were JAL (John Arnold Lind).

The pilot project was an emergency room project for the Saskatchewan Government. Arnie developed the JAD methodology, and put together a one-week seminar, involving primarily nurses and administrators from the emergency room, but also including some application development personnel. The one-week seminar produced an application framework, which was then coded and implemented in less than one month, versus an average of 18 months for traditional application development. And because the users themselves designed the system, they immediately adopted and liked the application. After the pilot project, IBM was very supportive of the JAD methodology, as they saw it as a way to more quickly implement computing applications, running on IBM hardware.

Arnie Lind spent the next 13 years at IBM Canada continuing to develop the JAD methodology, and traveling around the world performing JAD seminars, and training IBM employees in the methods and techniques of JAD. JADs were performed extensively throughout IBM Canada, and the technique also spread to IBM in the United States. Arnie Lind trained several people at IBM Canada to perform JADs, including Tony Crawford and Chuck Morris. Arnie Lind retired from IBM in 1987, and continued to teach and perform JADs on a consulting basis, throughout Canada, the United States, and Asia.

The JAD process was formalized by Tony Crawford and Chuck Morris of IBM in the late 1970s. It was then deployed at Canadian International Paper. JAD was used in IBM Canada for a while before being brought back to the US. Initially, IBM used JAD to help sell and implement a software program they sold, called COPICS. It was widely adapted to many uses (system requirements, grain elevator design, problem-solving, etc.). Tony Crawford later developed JAD-Plan and then JAR (joint application requirements). In 1985, Gary Rush wrote about JAD and its derivations – Facilitated Application Specification Techniques (FAST) – in Computerworld.[2]

Originally, JAD was designed to bring system developers and users of varying backgrounds and opinions together in a productive as well as creative environment. The meetings were a way of obtaining quality requirements and specifications. The structured approach provides a good alternative to traditional serial interviews by system analysts. JAD has since expanded to cover broader IT work as well as non-IT work (read about Facilitated Application Specification Techniques – FAST – created by Gary Rush in 1985 to expand JAD applicability.[3]

Key participants

Executive Sponsor
The executive who charters the project, the system owner. They must be high enough in the organization to be able to make decisions and provide the necessary strategy, planning, and direction.
Subject Matter Experts
These are the business users, the IS professionals, and the outside experts that will be needed for a successful workshop. This group is the backbone of the meeting; they will drive the changes.
Facilitator/Session Leader
meeting and directs traffic by keeping the group on the meeting agenda. The facilitator is responsible for identifying those issues that can be solved as part of the meeting and those which need to be assigned at the end of the meeting for follow-up investigation and resolution. The facilitator serves the participants and does not contribute information to the meeting.
Scribe/Modeller/Recorder/Documentation Expert
Records and publish the proceedings of the meeting and does not contribute information to the meeting.
Observers
Generally members of the application development team assigned to the project. They are to sit behind the participants and are to silently observe the proceedings.

9 key steps

  1. Identify project objectives and limitations: It is vital to have clear objectives for the workshop and for the project as a whole. The pre-workshop activities, the planning and scoping, set the expectations of the workshop sponsors and participants. Scoping identifies the business functions that are within the scope of the project. It also tries to assess both the project design and implementation complexity. The political sensitivity of the project should be assessed. Has this been tried in the past? How many false starts were there? How many implementation failures were there? Sizing is important. For best results, systems projects should be sized so that a complete design – right down to screens and menus – can be designed in 8 to 10 workshop days.
  2. Identify critical success factors: It is important to identify the critical success factors for both the development project and the business function being studied. How will we know that the planned changes have been effective? How will success be measured? Planning for outcomes assessment helps to judge the effectiveness and the quality of the implemented system over its entire operational life.
  3. Define project deliverables: In general, the deliverables from a workshop are documentation and a design. It is important to define the form and level of detail of the workshop documentation. What types of diagrams will be provided? What type or form of narrative will be supplied? It is a good idea to start using a CASE tool for diagramming support right from the start. Most of the available tools have good to great diagramming capabilities but their narrative support is generally weak. The narrative is best produced with your standard word processing software.
  4. Define the schedule of workshop activities: Workshops vary in length from one to five days. The initial workshop for a project should not be less than three days. It takes the participants most of the first day to get comfortable with their roles, with each other, and with the environment. The second day is spent learning to understand each other and developing a common language with which to communicate issues and concerns. By the third day, everyone is working together on the problem and real productivity is achieved. After the initial workshop, the team-building has been done. Shorter workshops can be scheduled for subsequent phases of the project, for instance, to verify a prototype. However, it will take the participants from one to three hours to re-establish the team psychology of the initial workshop.
  5. Select the participants: These are the business users, the IT professionals, and the outside experts that will be needed for a successful workshop. These are the true "back bones" of the meeting who will drive the changes.
  6. Prepare the workshop material: Before the workshop, the project manager and the facilitator perform an analysis and build a preliminary design or straw man to focus the workshop. The workshop material consists of documentation, worksheets, diagrams, and even props that will help the participants understand the business function under investigation.
  7. Organize workshop activities and exercises: The facilitator must design workshop exercises and activities to provide interim deliverables that build towards the final output of the workshop. The pre-workshop activities help design those workshop exercises. For example, for a Business Area Analysis, what's in it? A decomposition diagram? A high-level entity-relationship diagram? A normalized data model? A state transition diagram? A dependency diagram? All of the above? None of the above? It is important to define the level of technical diagramming that is appropriate to the environment. The most important thing about a diagram is that it must be understood by the users. Once the diagram choice is made, the facilitator designs exercises into the workshop agenda to get the group to develop those diagrams. A workshop combines exercises that are serially oriented to build on one another, and parallel exercises, with each sub-team working on a piece of the problem or working on the same thing for a different functional area. High-intensity exercises led by the facilitator energize the group and direct it towards a specific goal. Low-intensity exercises allow for detailed discussions before decisions. The discussions can involve the total group or teams can work out the issues and present a limited number of suggestions for the whole group to consider. To integrate the participants, the facilitator can match people with similar expertise from different departments. To help participants learn from each other, the facilitator can mix the expertise. It's up to the facilitator to mix and match the sub-team members to accomplish the organizational, cultural, and political objectives of the workshop. A workshop operates on both the technical level and the political level. It is the facilitator's job to build consensus and communications, to force issues out early in the process. There is no need to worry about the technical implementation of a system if the underlying business issues cannot be resolved.
  8. Prepare, inform, educate the workshop participants: All of the participants in the workshop must be made aware of the objectives and limitations of the project and the expected deliverables of the workshop. Briefing of participants should take place 1 to 5 days before the workshop. This briefing may be teleconferenced if participants are widely dispersed. The briefing document might be called the Familiarization Guide, Briefing Guide, Project Scope Definition, or the Management Definition Guide – or anything else that seems appropriate. It is a document of eight to twelve pages, and it provides a clear definition of the scope of the project for the participants. The briefing itself lasts two to four hours. It provides the psychological preparation everyone needs to move forward into the workshop.
  9. Coordinate workshop logistics: Workshops should be held off-site to avoid interruptions. Projectors, screens, PCs, tables, markers, masking tape, Post-It notes, and many other props should be prepared. What specific facilities and props are needed is up to the facilitator. They can vary from simple flip charts to electronic white boards. In any case, the layout of the room must promote the communication and interaction of the participants.

Advantages

  • JAD decreases time and costs associated with requirements elicitation process. During 2-4 weeks information not only is collected, but requirements, agreed upon by various system users, are identified. Experience with JAD allows companies to customize their systems analysis process into even more dynamic ones like Double Helix, a methodology for mission-critical work.
  • JAD sessions help bring experts together giving them a chance to share their views, understand views of others, and develop the sense of project ownership.
  • The methods of JAD implementation are well-known, as it is "the first accelerated design technique available on the market and probably best known", and can easily be applied by any organization.
  • Easy integration of CASE tools into JAD workshops improves session productivity and provides systems analysts with discussed and ready to use models.

Challenges

  • Without multifaceted preparation for a JAD session, professionals' valuable time can be easily wasted. If JAD session organizers do not study the elements of the system being evaluated, an incorrect problem could be addressed, incorrect people could be invited to participate, and inadequate problem-solving resources could be used.
  • JAD workshop participants should include employees able to provide input on most, if not all, of the pertinent areas of the problem. This is why particular attention should be paid during participant selection. The group should consist not only of employees from various departments who will interact with the new system, but from different hierarchies of the organizational ladder. The participants may have conflicting points of view, but meeting will allow participants to see issues from different viewpoints. JAD brings to light a better model outline with better understanding of underlying processes.
  • The facilitator has an obligation to ensure all participants – not only the most vocal ones – have a chance to offer their opinions, ideas, and thoughts.

References

  1. ↑ Rush, Gary (2013-06-06). "How Significant is the Value of Facilitation?". http://mgrconsulting.com/index.php/37-focused-enewsletters-gary-rush-facilitation/benefits-of-facilitation/182-how-significant-is-the-value-of-facilitation. ]
  2. ↑ "A FAST Way to Define System Requirements", by Gary Rush, Computerworld, Volume 19 Number 40, In Depth pages ID/11 to ID/16 (pages 47 to 52), October 7, 1985. Transcript here.
  3. ↑ JAD | FAST | FoCuSeD™ Structured Facilitation Technique[1].)

Bibliography



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