HIGH DEMANDS ON THE SOFTWARE
Before the system was introduced, the market was sounded out against the background of carefully recorded requirements. Nordwasser’s technical documentation department provided expertise in all GIS issues. Stefan Hammann – head of this department – played a key role in the introduction of the system: “We coordinated our requirements across departments. Also involved were the connection department with the property clerks, the network construction department with the foremen and field engineers as users of the app, and the IT applications department, which is responsible of the topics of system integration and mobile device management.“ In the subsequent tender, the project partners ESN and Mettenmeier had to prove with NAVA that they fulfilled the formulated specifications: NAVA scored well in important criteria such as the “representation of the existing workflow“ and the “operation by clerks in the connection system“ with easily configurable order templates and component catalogues. For example, the relevant GIS fields were matched with representative sketches and set up. Important fields were also added for the assignment of orders and tasks to the property clerk and the ERP system “kVASy”. “By this, we wanted to ensure that we maintained best working practices while fully digitising the process.” says Hammann. In the NAVA Manager, the clerk creates an order for each house connection request and transmits it at the push of a button either to the NAVA app of Nordwasser’s field engineers or, in the future, to a service provider.
SURVEYING WITH SMARTPHONES – DONE BY THE FIELD ENGINEERS
After the property connection has been laid, the field engineer works through all the other steps on site with the app: capturing object data such as material or dimensions, filling out form fields in the field book, photographing meter readings and components and, last but not least, recording the measurement data and drawing up the sketch. To do this, he first captures clear reference points (vanishing point, zero point) for the measurement sketch, for example the corners of buildings or objects already documented in the GIS, such as shafts. The field engineer then measures the components, starting with the valve clamp or the water branch, through the complete pipe run with its bend points, to the house entry. In the final check mode, the app validates the points and transfers them to a sketch with automatic orthogonal dimensioning and absolute georeferencing by the field engineer. The course of the pipe is additionally visualised via photos taken during the measurement and assigned to the components.