B. Web Service Portal
One of the web user interfaces for the BDaaS platform is the web service portal illustrated in Figure 3. The main purpose of the web service portal is to facilitate the users' communication and information sharing on the platform for efficient and rapid service development. Therefore, the web service portal provides a web board on which all users can share their information. They can explore data, algorithms, and services using catalogue services and post their requirements on the board. This collaboration among users is possible due to the multi-tenancy architecture.