https://www-franzi.uat.aerea.de/en/project-reports/ Recent content in Project reports on AereA GmbH - Software that still runs in five years Hugo en-US info@aerea.de (AereA GmbH) info@aerea.de (AereA GmbH) https://www-franzi.uat.aerea.de/en/project-reports/ecopulse/ Mon, 01 Jan 0001 00:00:00 +0000info@aerea.de (AereA GmbH) https://www-franzi.uat.aerea.de/en/project-reports/ecopulse/ <h2 id="starting-point">Starting point <a class="heading-anchor" href="#starting-point" aria-label="Direct link to the section Starting point"> <span aria-hidden="true">#</span> </a> </h2> <p>Energy and charging infrastructure rarely grows to a plan. It grows in steps: first the photovoltaics, then the storage, later the wallboxes, at some point a second meter for the new part of the building. Every device brings its own interface, every manufacturer its own data model.</p> <p>The result is an operation with plenty of numbers and still no basis for decisions: the inverter knows its generation, the wallbox knows its charge state, the meter knows the grid draw - but nobody knows the whole picture at the same point in time.</p> https://www-franzi.uat.aerea.de/en/project-reports/phonalisa/ Mon, 01 Jan 0001 00:00:00 +0000info@aerea.de (AereA GmbH) https://www-franzi.uat.aerea.de/en/project-reports/phonalisa/ <h2 id="starting-point">Starting point <a class="heading-anchor" href="#starting-point" aria-label="Direct link to the section Starting point"> <span aria-hidden="true">#</span> </a> </h2> <p>A telephony system is not a project with an end date. It is a product that grows over years: new endpoint generations, new multi-tenancy requirements, a changing threat situation at the network border. That duration is the actual requirement.</p> <h2 id="platform-and-core-system">Platform and core system <a class="heading-anchor" href="#platform-and-core-system" aria-label="Direct link to the section Platform and core system"> <span aria-hidden="true">#</span> </a> </h2> <ul> <li>Modular IP telecommunications system based on <strong>SIP, RTP and XMPP</strong> with CTI functionality</li> <li>Multi-tenant management of extensions, ring groups, queues and call rules</li> <li>Automated device integration and provisioning of endpoints</li> <li>Client and import functions for migrating existing data</li> <li>Complementary services around directory, presence and call control</li> </ul> <h2 id="session-border-controller-and-security">Session border controller and security <a class="heading-anchor" href="#session-border-controller-and-security" aria-label="Direct link to the section Session border controller and security"> <span aria-hidden="true">#</span> </a> </h2> <p>The network border is the most exposed component of a telephony platform. We built our <strong>own SBC</strong> for it: encryption of signalling and media streams via TLS, SRTP and ZRTP, DDoS protection, rate limiting, hardening of the exposed services and certificate management.</p> https://www-franzi.uat.aerea.de/en/project-reports/industrial-data-platform/ Mon, 01 Jan 0001 00:00:00 +0000info@aerea.de (AereA GmbH) https://www-franzi.uat.aerea.de/en/project-reports/industrial-data-platform/ <h2 id="starting-point">Starting point <a class="heading-anchor" href="#starting-point" aria-label="Direct link to the section Starting point"> <span aria-hidden="true">#</span> </a> </h2> <p>An internationally active plant manufacturer operates machines at customers worldwide. Their operating data is valuable for service, optimisation and further development - but it has to travel across factory and national boundaries without creating unsecured channels.</p> <h2 id="the-task">The task <a class="heading-anchor" href="#the-task" aria-label="Direct link to the section The task"> <span aria-hidden="true">#</span> </a> </h2> <p>A platform for industrial data exchange that scales with the number of connected installations, separates data classes cleanly and secures communication end to end. Plus documentation that enables the client&rsquo;s own teams to operate and evolve it.</p> https://www-franzi.uat.aerea.de/en/project-reports/condition-monitoring-migration/ Mon, 01 Jan 0001 00:00:00 +0000info@aerea.de (AereA GmbH) https://www-franzi.uat.aerea.de/en/project-reports/condition-monitoring-migration/ <h2 id="starting-point">Starting point <a class="heading-anchor" href="#starting-point" aria-label="Direct link to the section Starting point"> <span aria-hidden="true">#</span> </a> </h2> <p>The condition monitoring backend had grown over years. Functionally it worked, but every extension cost disproportionate time - mainly because data access was tightly interwoven with the business logic.</p> <h2 id="the-task">The task <a class="heading-anchor" href="#the-task" aria-label="Direct link to the section The task"> <span aria-hidden="true">#</span> </a> </h2> <p>Migration to a current stack, without pausing the product and without carrying the structural problems along.</p> <h2 id="approach">Approach <a class="heading-anchor" href="#approach" aria-label="Direct link to the section Approach"> <span aria-hidden="true">#</span> </a> </h2> <p>Instead of a 1:1 port to .NET Core, we <strong>redesigned the data access layer</strong> and built it on Entity Framework. The migration plan follows functional boundaries: after every step the system runs and can be tested. Operation is containerised via Docker against PostgreSQL.</p> https://www-franzi.uat.aerea.de/en/project-reports/laser-system-medical/ Mon, 01 Jan 0001 00:00:00 +0000info@aerea.de (AereA GmbH) https://www-franzi.uat.aerea.de/en/project-reports/laser-system-medical/ <h2 id="starting-point">Starting point <a class="heading-anchor" href="#starting-point" aria-label="Direct link to the section Starting point"> <span aria-hidden="true">#</span> </a> </h2> <p>A laser system in medical use is planned and controlled through its user interface. That interface is therefore not a frontend but a safety-relevant part of the device.</p> <h2 id="the-task">The task <a class="heading-anchor" href="#the-task" aria-label="Direct link to the section The task"> <span aria-hidden="true">#</span> </a> </h2> <p>Development, testing and documentation of the planning and treatment interfaces, plus extension of the associated test tools and implementation of safety-critical updates within the running product lifecycle.</p> https://www-franzi.uat.aerea.de/en/project-reports/vehicle-bus-analysis/ Mon, 01 Jan 0001 00:00:00 +0000info@aerea.de (AereA GmbH) https://www-franzi.uat.aerea.de/en/project-reports/vehicle-bus-analysis/ <h2 id="starting-point">Starting point <a class="heading-anchor" href="#starting-point" aria-label="Direct link to the section Starting point"> <span aria-hidden="true">#</span> </a> </h2> <p>Vehicle bus data from CAN, FlexRay and automotive Ethernet accumulates in large volumes during measurement. The central analysis platform for it had grown in C++ over years - functionally extensive, structurally hard to change.</p> <h2 id="the-task">The task <a class="heading-anchor" href="#the-task" aria-label="Direct link to the section The task"> <span aria-hidden="true">#</span> </a> </h2> <p>Less additional development capacity than <strong>technical leadership</strong>: modernise the architecture, evolve how the teams work, and connect both so that it holds after the engagement ends.</p> https://www-franzi.uat.aerea.de/en/project-reports/tax-software/ Mon, 01 Jan 0001 00:00:00 +0000info@aerea.de (AereA GmbH) https://www-franzi.uat.aerea.de/en/project-reports/tax-software/ <h2 id="starting-point">Starting point <a class="heading-anchor" href="#starting-point" aria-label="Direct link to the section Starting point"> <span aria-hidden="true">#</span> </a> </h2> <p>A tax administration system does not change because someone had a better idea, but because a law comes into force. The deadlines are set externally and cannot be moved.</p> <h2 id="the-task">The task <a class="heading-anchor" href="#the-task" aria-label="Direct link to the section The task"> <span aria-hidden="true">#</span> </a> </h2> <p>Further development and quality assurance over several years, with the requirement of having a reliable regression run for every statutory deadline.</p>