Antonio Ruiz-Cortés

Antonio Ruiz-Cortés
Universidad de Sevilla | US · Languages and Systems

PhD

About

321
Publications
85,252
Reads
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7,252
Citations
Introduction
Antonio Ruiz Cortés is Full Professor at the University of Sevilla. Before joining this University, he worked for seven years in the Computer Industry. He currently heads the Applied Software Engineering Group conducting research on service-oriented computing, business process management, testing and software product lines, being the recipient of the Most Influential Paper of SPLC 2017 award. He has organized several conferences, including JCIS 2008, SPLC 2017 and SISTEDES 2018, and is an associate editor of Springer Computing. He has been Deputy Director of the Informatics School and Head of the Computer Languages and Systems department. From September 2018 he is the President of the Spanish Society on Software Engineering (SISTEDES).

Publications

Publications (321)
Conference Paper
Full-text available
Online testing of web APIs—testing APIs in production—is gaining traction in industry. Platforms such as RapidAPI and Sauce Labs provide online testing and monitoring services of web APIs 24/7, typically by re-executing manually designed test cases on the target APIs on a regular basis. In parallel, research on the automated generation of test case...
Preprint
Full-text available
Context: The need of replicating empirical studies in Computer Science (CS) is widely recognized among the research community to consolidate acquired knowledge generalizing results. It is essential to report the changes of each replication to understand the evolution of the experimental validity across a family of studies. Unfortunately, the lack o...
Article
The increasing capabilities of mobile devices have led to the emergence of new paradigms exploiting them. These paradigms foster the onload and distribution of functionalities on mobile devices, allowing the development of distributed mobile applications. This distribution reduces the latency and the data traffic overhead and improves privacy. As i...
Article
Full-text available
Service providers compose services in service chains that require deep integration of core operational information systems across organizations. Additionally, advanced analytics inform data-driven decision-making in corresponding AI-enabled business processes in today’s complex environments. However, individual partner engagements with service cons...
Chapter
The software development trend uses service-oriented software architecture (SOA), which provides efficiency, agility, and ease of growth. The architectural design most commonly used in SOA application development is REST (Representational State Transfer); however, some data management problems have been identified in its Application Programming Int...
Article
Automated test case generation for web APIs is a thriving research topic, where test cases are frequently derived from the API specification. However, this process is only partially automated since testers are usually obliged to manually set meaningful valid test inputs for each input parameter. In this article, we present ARTE, an approach for the...
Article
In this paper, we deal with questions related to blockchains in complex Internet of Things (IoT)-based ecosystems. Such ecosystems are typically composed of IoT devices, edge devices, cloud computing software services, as well as people, who are decision makers in scenarios such as smart cities. Many decisions related to analytics can be based on d...
Conference Paper
Full-text available
Automated test case generation for RESTful APIs is a thriving research topic due to their critical role in software integration. Testing approaches can be divided into black-box and white-box. Black-box approaches exploit the API specification for the generation of test cases, while white-box approaches can also leverage the source code. Both strat...
Article
Full-text available
The modeling and management of business processes often leads to the definition of several variants of the same process. This variability can be reflected in different process perspectives such as control-flow, data, resources or performance. The management of process variants can be a laborious, time-consuming and error-prone task since they requi...
Conference Paper
Full-text available
Testing RESTful APIs thoroughly is critical due to their key role in software integration. Existing tools for the automated generation of test cases in this domain have shown great promise, but their applicability is limited as they mostly rely on random inputs, i.e., fuzzing. In this paper, we present RESTest, an open source black-box testing fram...
Conference Paper
Full-text available
The software development trend uses service-oriented software architecture (SOA), which provides efficiency, agility, and ease of growth. The architectural design most commonly used in SOA application development is REST (Representational State Transfer); however, some data management problems have been identified in its Application Programming Int...
Chapter
Board-based software tools for managing collaborative work (e.g. Trello or Microsoft Planner) are highly configurable information systems. Their structure is based on boards that contain cards organized in lists. This structure allows users to organize a wide variety of formal or informal information and work processes in a very flexible way. Howev...
Conference Paper
Full-text available
Automated test case generation for RESTful web APIs is a thriving research topic due to their key role in software integration. Most approaches in this domain follow a black-box approach, where test cases are randomly derived from the API specification. These techniques show promising results, but they neglect constraints among input parameters (so...
Article
Full-text available
Cloud computing constant evolution requires dynamic adjustments to service pricing and billing terms, considering provider infrastructures, customer requirements, and discount policies, among others. In this context, Customer Agreements (CA) are used to regulate the service provision including, among other information, the agreed service level in S...
Preprint
Full-text available
Agile software teams are expected to follow a number of specific Team Practices (TPs) during each iteration, such as estimating the effort ("points") required to complete user stories and coordinating the management of the codebase with the delivery of features. For software engineering instructors trying to teach such TPs to student teams, manuall...
Article
Full-text available
Web services often impose inter-parameter dependencies that restrict the way in which two or more input parameters can be combined to form valid calls to the service. Unfortunately, current specification languages for web services like the OpenAPI Specification (OAS) provide no support for the formal description of such dependencies, which makes it...
Conference Paper
Full-text available
Automated testing approaches for RESTful web APIs typically follow a black-box strategy, where test cases are derived from the API specification. These techniques show promising results, but they neglect constraints among input parameters (so-called inter-parameter dependencies), as these cannot be formally described in current API specification la...
Article
Full-text available
The explosive growth of the mobile application market in recent years has led to a large concomitant mobile software industry whose components are, in many cases, startups and small-size software providers. The success of these applications and the firms behind them depends on a subtle balance between different dimensions mainly affected by their a...
Article
Business process compliance ensures that the processes of an organisation are designed and executed according to the rules that govern it. We faced the challenge of building a compliance management system for a process-aware organisation and identified several needs that, despite having been identified in the literature, were only partially satisfi...
Preprint
Full-text available
Web services often impose inter-parameter dependencies that restrict the way in which two or more input parameters can be combined to form valid calls to the service. Unfortunately, current specification languages for web services like the OpenAPI Specification (OAS) provide no support for the formal description of such dependencies, which makes it...
Article
Context. Mindfulness is a meditation technique whose main goal is keeping the mind calm and educating attention by focusing only on one thing at a time, usually breathing. The reported benefits of its continued practice can be of interest for Software Engineering students and practitioners, especially in tasks like conceptual modeling, in which con...
Chapter
Nursing home culture change movement advocates for care that is less hospital-like, and more patient-centered. Despite being a step towards the good direction in providing a proper service for elderly people, considering their well-being is not easy due to a number of factors as: specific treatments with a high price; the number of involved stakeho...
Article
Full-text available
It is well-known that context impacts running instances of a process. Thus, defining and using contextual information may help to improve the predictive monitoring of business processes, which is one of the main challenges in process mining. However, identifying this contextual information is not an easy task because it might change depending on th...
Article
Full-text available
Context: In any discipline, replications of empirical studies are necessary to consolidate the acquired knowledge. In Software Engineering, replications have been reported since the 1990s, although their number is still small. The difficulty in publishing, the lack of guidelines, and the unavailability of replication packages are pointed out by the...
Conference Paper
Full-text available
Web services often impose dependency constraints that restrict the way in which two or more input parameters can be combined to form valid calls to the service. Unfortunately, current specification languages for web services like the OpenAPI Specification provide no support for the formal description of such dependencies, which makes it hardly poss...
Chapter
Full-text available
The OpenAPI Specification (OAS) is the de facto standard to describe RESTful APIs from a functional perspective. OAS has been a success due to its simple model and the wide ecosystem of tools supporting the SLA-Driven API development lifecycle. Unfortunately, the current OAS scope ignores crucial information for an API such as its Service Level Agr...
Conference Paper
Feature models have been used since the 90's to describe software product lines as a way of reusing common parts in a family of software systems. In 2010, a systematic literature review was published summarizing the advances and settling the basis of the area of Automated Analysis of Feature Models (AAFM). From then on, different studies have appli...
Conference Paper
Full-text available
Web APIs following the REST architectural style (so-called RESTful web APIs) have become the de-facto standard for software integration. As RESTful APIs gain momentum, so does the testing of them. However, there is a lack of mechanisms to assess the adequacy of testing approaches in this context, which makes it difficult to automatically measure an...
Conference Paper
Full-text available
As software architecture design is evolving to a microservice paradigm, RESTful APIs are being established as the preferred choice to build applications. In such a scenario, there is a shift towards a growing market of APIs where providers offer different service levels with tailored limitations typically based on the cost. In such a context, while...
Conference Paper
Full-text available
As software architecture design is evolving to a microservice paradigm, RESTful APIs are being established as the preferred choice to build applications. In such a scenario, there is a shift towards a growing market of APIs where providers offer different service levels with tailored limitations typically based on the cost. In this context, while t...
Conference Paper
Agile/XP (Extreme Programming) software teams are expected to follow a number of specific practices in each iteration, such as estimating the effort (”points”) required to complete user stories, properly using branches and pull requests to coordinate merging multiple contributors’ code, having frequent ”standups” to keep all team members in sync, a...
Conference Paper
Full-text available
Searching and displaying data based on user queries is a key feature of most software applications such as information systems, web portals, web APIs, and data analytic platforms. The large volume of data managed by these types of systems, henceforth called query-based systems (QBS), makes them extremely hard to test due to the difficulty to assess...
Article
Full-text available
Feature models have been used since the 90's to describe software product lines as a way of reusing common parts in a family of software systems. In 2010, a systematic literature review was published summarizing the advances and settling the basis of the area of Automated Analysis of Feature Models (AAFM). From then on, different studies have appli...
Conference Paper
Full-text available
As software architecture design is evolving to microservice paradigms, RESTful APIs become the building blocks of applications. In such a scenario, a growing market of APIs is proliferating and developers face the challenges to take advantage of this reality. For example, third-party APIs typically define different usage limitations depending on th...
Article
Full-text available
Process performance indicators (PPIs) allow the quantitative evaluation of business processes, providing essential information for decision making. It is common practice today that business processes and PPIs are usually modelled separately using graphical notations for the for- mer and natural language for the latter. This approach makes PPI defin...
Article
Full-text available
Knowledge-intensive Processes (KIPs) are processes whose execution is heavily dependent on knowledge workers performing various interconnected knowledge-intensive decision-making tasks. Among other characteristics, KIPs are usually non-repeatable, collaboration-oriented, unpredictable, and, in many cases, driven by implicit knowledge, derived from...
Article
A Service Level Agreement (SLA) regulates the provisioning of a service by defining a set of guarantees. Each guarantee sets a Service Level Objective (SLO) on some service metrics, and optionally a compensation that is applied when the SLO is unfulfilled or overfulfilled. Currently, there are software tools and research proposals that use the info...
Conference Paper
Full-text available
Software architecture tendencies are shifting to a microservice paradigm. In this context, RESTful APIs are being established the standard of integration. API designer often identifies two key issues to be competitive in such a growing market. On the one hand, the generation of accurate documentation of the behavior and capabilities of the API to p...
Article
Full-text available
Model transformations play a cornerstone role in Model-Driven Engineering (MDE), as they provide the essential mechanisms for manipulating and transforming models. The correctness of software built using MDE techniques greatly relies on the correctness of model transformations. However, it is challenging and error prone to debug them, and the situa...
Conference Paper
Full-text available
Sofware distribution models are moving to SaaS paradigms where customers no longer need to buy a perpetual license. In this context, SaaS providers leverage the Service Level Agreement (SLA) concept to delimit the functionality and guarantees to which they commit to their customers. However, although formal specifications for the definition of SLAs...
Article
Full-text available
Context: Performance testing is a challenging task mainly due to the lack of test oracles, i.e. mechanisms to decide whether the performance of a program is acceptable or not because of a bug. Metamorphic testing enables the generation of test cases in the absence of an oracle by exploiting the so-called metamorphic relations between the inputs and...
Conference Paper
Web Application Programming Interfaces (APIs) specify how to access services and data over the network, typically using Web services. Web APIs are rapidly proliferating as a key element to foster reusability, integration, and innovation, enabling new consumption models such as mobile or smart TV apps. Companies such as Facebook, Twitter, Google, eB...
Preprint
Full-text available
Model transformations are the cornerstone of Model-Driven Engineering, and provide the essential mechanisms for manipulating and transforming models. Checking whether the output of a model transformation is correct is a manual and error-prone task, this is referred to as the oracle problem in the software testing literature. The correctness of the...
Article
Predictive monitoring of business processes is a challenging topic of process mining which is concerned with the prediction of process indicators of running process instances. The main value of predictive monitoring is to provide information in order to take proactive and corrective actions to improve process performance and mitigate risks in real...
Article
Full-text available
Nowadays, process mining is becoming a growing area of interest in business process management (BPM). Process mining consists in the extraction of information from the event logs of a business process. From this information, we can discover process models, monitor and improve our processes. One of the applications of process mining, is the predicti...
Article
Full-text available
Process-oriented organisations need to manage the different types of responsibilities their employees may have w.r.t. the activities involved in their business processes. Despite several approaches provide support for responsibility modelling, in current Business Process Management Systems (BPMS) the only responsibility considered at runtime is the...
Article
Full-text available
Web Application Programming Interfaces (APIs) allow systems to interact with each other over the network. Modern Web APIs often adhere to the REST architectural style, being referred to as RESTful Web APIs. RESTful Web APIs are decomposed into multiple resources (e.g., a video in the YouTube API) that clients can manipulate through HTTP interaction...
Conference Paper
Full-text available
As distribution models of information systems are moving to XaaS paradigms, microservices architectures are rapidly emerging, having the RESTful principles as the API model of choice. In this context, the term of API Economy is being used to describe the increasing movement of the industries in order to take advantage of exposing their APIs as part...
Conference Paper
Full-text available
Cloud computing paradigm has brought an overwhelming variety of cloud services from different providers, each one offering a plethora of configuration and purchasing options for them. Users may have certain requirements and preferences not only concerning service configuration, but also with respect to their usage schedule. In this situation, an ap...