TY  - CHAP
U1  - Konferenzveröffentlichung
A1  - Bogner, Justus
A1  - Wagner, Stefan
A1  - Zimmermann, Alfred
ED  - Muccini, Henry
ED  - Avgeriou, Paris
ED  - Buhnova, Barbora
ED  - Camara, Javier
ED  - Caporuscio, Mauro
ED  - Franzago, Mirco
ED  - Koziolek, Anne
ED  - Scandurra, Patrizia
ED  - Trubiani, Catia
ED  - Weyns, Danny
ED  - Zdun, Uwe
T1  - Collecting service-based maintainability metrics from RESTful API descriptions: static analysis and threshold derivation
T2  - Software architecture : 14th European Conference, ECSA 2020 Tracks and Workshops, L'Aquila, Italy, September 14–18, 2020, proceedings
N2  - While many maintainability metrics have been explicitly designed for service-based systems, tool-supported approaches to automatically collect these metrics are lacking. Especially in the context of microservices, decentralization and technological heterogeneity may pose challenges for static analysis. We therefore propose the modular and extensible RAMA approach (RESTful API Metric Analyzer) to calculate such metrics from machine-readable interface descriptions of RESTful services. We also provide prototypical tool support, the RAMA CLI, which currently parses the formats OpenAPI, RAML, and WADL and calculates 10 structural service-based metrics proposed in scientific literature. To make RAMA measurement results more actionable, we additionally designed a repeatable benchmark for quartile-based threshold ranges (green, yellow, orange, red). In an exemplary run, we derived thresholds for all RAMA CLI metrics from the interface descriptions of 1,737 publicly available RESTful APIs. Researchers and practitioners can use RAMA to evaluate the maintainability of RESTful services or to support the empirical evaluation of new service interface metrics.
KW  - RESTful services
KW  - microservices
KW  - maintainability
KW  - size
KW  - complexity
KW  - cohesion
KW  - metrics
KW  - static analysis
KW  - API documentation
Y1  - 2020
SN  - 978-3-030-59155-7
SB  - 978-3-030-59155-7
U6  - https://doi.org/10.1007/978-3-030-59155-7_16
DO  - https://doi.org/10.1007/978-3-030-59155-7_16
SP  - 215
EP  - 227
S1  - 13
PB  - Springer
CY  - Cham
ER  -