Introducing DaaS – what and why

In the introduction, we briefly discussed and established that DaaS is useful for publishing already-ingested and analyzed data securely.

But what is DaaS? It is a data management strategy that enables data as a business asset, which makes valuable and business-critical data accessible on demand to various internal and external systems. Software-as-a-Service (SaaS) started becoming popular in the late 90s when software was provided to consumers on demand. Similarly, DaaS enables access to data on demand. With the help of service-oriented architectures (SOAs) and APIs, it enables secure platform-independent data access. The following diagram provides an overview of a DaaS stack:

Figure 9.1 – DaaS stack overview

As we can see, data from different kinds of data stores, such as data warehouses, data lakes, or online databases, can be unified by a virtual data layer that can be used to build the services or API layer...