Seite - 21 - in Intelligent Environments 2019 - Workshop Proceedings of the 15th International Conference on Intelligent Environments

engagement activities is given in Table 1. It is to be noted that stakeholders participated regularly in the development process. Table 1. Timeline of focus group engagement activities ID Type of Involvement Week Number IT1 Interview 1 QS1 Questionnaire 2-3 WS1 Workshop 4 MT1 Meeting 7 MT2 Meeting 10 WS2 Workshop 14 IT3 Interview 16 QS3 Questionnaire 19 WS3 Workshop 20 QS4 Questionnaire 20-23 WS4 Workshop 24 Another salient feature of UC-IEDP is its flexibility: it may be applied in an iterative manner or using more conventional waterfall based approach. In this project, an iterative approach was favored to allow changes as feedback was received from the stakeholders or requirements changed. This resulted in development of several prototypes as described in the following sections. 5.1. First prototype Stage 1 Initial scoping: The developer interviewed the planters to know their expectations. Discussions also focused on identifying any specific ethical needs. They were then given a questionnaire to fill in. These activities (IT1, QS1) were instrumental towards defining the services the system should provide based on the problems identified in the questionnaires by the planters. It was quite evident from initial observations that they were moderately at ease with using mobile app technologies. A workshop session (WS1) between the two parties was then held during which the set of services to be implemented was refined and finalized. The developer also provided details of devices that would be required and a consensus was reached based on constraints such as available funds, availability of devices on the local market and time required to develop the system. Following the workshop, the developer then generated an initial list of functional and non-functional requirements. A use case model of the system was also prepared along with low-fidelity mock-ups of the user interfaces for the application. Stage 2 Main development: The first design was discussed during a meeting (MT1) in week 8. Discussions also focused on clarifying the contexts under which the system will operate. For example, the focus group shed more light on the approximate water required by specific plants for optimal growth and the specific conditions under which this should be automated. Feedback was also collected on the UI mock-ups. Following this meeting, the developer then finalized the list of requirements for the system, and proceeded with more detailed designs using UML artefacts such as class diagrams, activity diagrams and state chart diagrams. The test cases for validating the functional requirements were also defined and a circuit diagram was designed using the Fritzing tool. Android material design was used to refine the initial mock-ups into high fidelity prototype based on A.Santokheeetal. /TowardsaGeneralFramework forEvaluating IEs’Methodologies 21