Exploring and categorizing maintainability assurance research for service and microservice-based systems

Im Laufe des Softwarelebenszyklus eines Programms innerhalb einer sich ständig wechselnden Softwareumgebung ist es wahrscheinlich, dass dieses Programm regelmäßig gewartet werden muss. Wartungen kosten Geld und somit ist es wichtig, dass ebensolche Wartungen effizient und effektiv durchgeführt werden können. Im Laufe der Geschichte der Softwareentwicklung traten unter anderem zwei Architekturmuster hervor: Serviceorientierte Architektur und Microservices. Da diese Architekturmuster ein hohes Maß an Wartbarkeit versprechen, wurden viele Altsysteme hin zu diesen modernen Architekturen migriert. Es kann fatale Folgen für Unternehmen haben, wenn Änderungen an einem System nicht schnell, risikofrei und fehlerfrei umgesetzt werden können. Es wurden bereits viele Forschungsarbeiten bezogen auf die Wartbarkeit von serviceorientierter Architektur publiziert. Systeme basierend auf Microservices fanden jedoch, bezogen auf Wartbarkeitssicherung, nicht viel Beachtung. Sämtliche Forschungsarbeiten befinden sich verteilt auf viele Literaturdatenbanken, wodurch ein umfassender Überblick erschwert wird. Um einen solchen Überblick bereitzustellen, führten wir im Rahmen dieser Bachelorarbeit eine systematische Literaturstudie durch, die sich mit der Wartbarkeitssicherung von serviceorienter Architektur und Systemen basierend auf Microservices beschäftigt. Zur Durchführung dieser systematischen Literaturstudie entwickelten wir eine Reihe von relevanten Forschungsfragen sowie ein striktes Forschungsprotokoll. Aufbauend auf diesem Protokoll sammelten wir insgesamt 223 Forschungsarbeiten von verschiedenen Herausgebern. Diese Arbeiten wurden bezüglich ihres Inhalts zuerst in drei Gruppen von Kategorien unterteilt (architektonisch, thematisch und methodisch). Danach wurden die jeweils relevantesten Forschungsrichtungen aus jeder thematischen Kategorie herausgearbeitet und vorgestellt. Zum Abschluss wurden deutliche Unterschiede der in den Forschungsarbeiten präsentierten Inhalte in Bezug auf serviceorientierte Architektur und Microservice-basierte Systeme herausgearbeitet und dargestellt. Unsere Ergebnisse zeigten eine deutliche Unterrepräsentation von Forschungsarbeiten zur Wartbarkeitssicherung für Microservice-basierte Systeme. Während der Untersuchung der Kategorien konnten wir diverse Forschungsrichtungen innerhalb dieser feststellen. Ein Beispiel hierfür ist die Forschungsrichtung "change impact in business processes" in der Kategorie "Change Impact and Scenarios". Abschließend konnten wir einige Unterschiede bezogen auf die gesammelten Forschungsarbeiten zwischen Systemen basierend auf einer serviceorientierten Architektur und Systemen basierend auf Microservices feststellen. Ein solcher Unterschied kann zum Beispiel in der Kategorie "Antipatterns and Bad Smells" gefunden werden. Im Vergleich zu Forschungsarbeiten, welche sich auf serviceorientierte Architektur beziehen, beinhalten Forschungsarbeiten im Zusammenhang mit Systemen auf Basis von Microservices nur grundlegende Informationen zu Antipatterns, jedoch keine Herangehensweisen, um diese zu erkennen. Aufgrund unserer Ergebnisse schlagen wir einen stärkeren Fokus auf Forschung zur Wartbarkeitssicherung in Microservice-basierten Systemen vor. Mögliche zukünftige Forschungsarbeiten könnten überprüfen, ob Herangehensweisen zur Wartbarkeitssicherung von serviceorientierter Architektur auch bei Microservices anwendbar sind. Darüber hinaus schlagen wir die Durchführung von systematischen Literaturstudien vor, welche Themen wie "runtime adaptation", "testing" und "legacy migration" untersuchen, da diese Themen in unserer Literaturstudie ausgeschlossen wurden.It is very likely that software running in an everchanging environment needs to evolve at multiple points during its lifecycle. Because maintenance costs money, it is important for such tasks to be as effective and efficient as possible. During the history of software development service- and microservice-based architectures have emerged among other architectures. Since these architectures promise to provide a high maintainability, many legacy systems are or were migrated towards a service- or microservice-based architecture. In order to keep such systems running, maintenance is inevitable. While a lot of research has been published regarding maintainability assurance for service-based systems, microservice-based systems have not gotten a lot of attention. All published research is spread across several scientific databases which makes it difficult to get an extensive overview of existing work. In order to provide such overview of maintainability assurance regarding service- and microservice-based systems, we conducted a systematic literature review. To support our literature review, we developed a set of meaningful research questions and a rigid research protocol. Based on our protocol we collected a set of 223 different papers. These papers were first categorized into a threefold set of categories (architectural, thematical and methodical). After that, the most relevant research directions from each thematical category were extracted and presented. Lastly, we extracted and presented notable differences between approaches relating to service-oriented architecture or microservice-based systems. Our findings show a clear underrepresentation of maintainability assurance approaches suitable for microservice-based systems. We further discovered that regarding our formed categories, we could find several research directions such as change impact in business processes in "Change Impact and Scenarios". In the end, we could identify some differences between service- and microservice-based systems concerning approaches we retrieved in this thesis. A difference, for example was that in comparison with papers related to service-oriented architecture in "Antipatterns and Bad Smells", microservices related papers only contained basic information on antipatterns, but no approaches to detect them. Due to our findings we suggest a higher participation in research regarding maintainability assurance for microservice-based systems. Possible future work in this area could include further research on the applicability of service-oriented maintainability assurance approaches or techniques in microservice-based systems. Furthermore, future researchers could conduct follow-up literature reviews and investigate topics such as runtime adaptation, testing and legacy migration, since we excluded such topics from this thesis

Resource enhancement and sustainable aquaculture practices in Southeast Asia: challenges in responsible production of aquatic species : proceedings of the international workshop on resource enhancement and sustainable aquaculture practices in Southeast Asia 2014 (RESA)

The conference was held in order to promote and augment regional initiatives on resource enhancement and sustainable aquaculture practices, and to contribute to poverty alleviation, livelihood and food security in Southeast Asia. The contributions of the selected participants during the conference which are contained in this volume are cited individually.The Government of Japan through the Trust Fund Programs of the SEAFDEC Secretariat provided financial support for the conduct of the International Workshop on Resource Enhancement and Sustainable Aquaculture practices in Southeast Asia in March 2014 in Iloilo, Philippines, as well as, the publication of this proceedings. The editors also acknowledge the efforts of the Publication Review Committee of SEAFDEC/AQD especially Dr. Relicardo M. Coloso, Dr. Maria Lourdes Cuvin-Aralar, Dr. Evelyn Grace de Jesus Ayson, Dr. Rolando Pakingking and Dr. Myrna B. Teruel for reviewing the draft of the proceedings prior to its publication. Thanks are also due Ms. Imee S. Hacla for the copy-editing and layout.Collapse All Expand AllFOREWORDMESSAGESKEYNOTE ADDRESSPREFACEACKNOWLEDGEMENTSPLENARY PAPERSIs small-hold tropical aquaculture in a genetic plunge towards extinction?Roger W. DoyleRapid adaptation to a new environment: is it reversible?Hitoshi ArakiCOUNTRY PAPERSCambodiaCurrent status of sustainable aquaculture in CambodiaOuch LangJapanStatus of resource enhancement and sustainable aquaculture practices in JapanKoichi Okuzawa, Takayuki Takebe, Narisato Hirai and Kazumasa IkutaMalaysiaStatus of resource management and aquaculture in MalaysiaAishah YusoffMyanmarInland fisheries resource enhancement and conservation practices in MyanmarHtun TheinPhilippinesThe Philippine National Aquasilviculture ProgramRomeo E. Dieta and Florida C. DietaViet NamGood aquaculture practices (VietGAP) and sustainable aquaculture development in Viet NamNguyen Thi Bang TamLao PDRCountry status on sustainable aquaculture in Lao PDRThongkhoun KhonglalianeSingaporeCurrent status of aquaculture in SingaporeNeo Chin HengIndonesiaSustainable aquaculture and resources enhancement inIndonesiaSetiawan Soetardjo and Irham AdhityaThailandMilkish: new choice for aquaculture in ThailandPrapat KosawatpatCONTRIBUTED PAPERSAssessment of humphead wrasse (Cheilinus undulatus), spawningaggregations and declaration of marine protected area as strategy for enhancement of wildstocksFilemon G. Romero and Akkil S. InjaniStock assessment of christian crabs (Charybdis feriatus, Linnaeus,1758)in San Miguel bayPlutomeo M. Nieves, Nelson R. Olfindo and Aldrin Mel MacaleAbalone aquaculture for stock enhancement and community livelihoodproject in northern Palawan, PhilippinesBenjamin J. GonzalesSocial preparations towards community-based approach to stockenhancement in Sagay Marine Reserve, PhilippinesNerissa D. Salayo, Raisa Joy G. Castel, Dianne Hope M. Tormon, Rafael T. Barrido, MarieFrancesJ. Nievales and Teruo AzumaCommunity-based shrimp stock enhancement for coastal socio-ecological restoration in the PhilippinesJon Altamirano, Hisashi Kurokura, Nerissa Salayo, Didi Baticados, Jee Grace Suyo and Satoshi IshikawaBFAR-CHED Philippine National Aquasilviculture Program (PNAP) in BataanRudy C. Flores, Felicisima E. Tungol, Abraham S Antonio, Elizabeth D. Medairos and Jonathan M.SalasMarine fish hatchery: developments and future trendsClarissa L. Marte and Joebert D. ToledoHatchery management techniques for tiger-tail seahorse (Hippocampus comes)Shelah Mae B. Ursua and Teruo AzumaUpdates on the seed production of mud crabEmilia T. Quinitio, Fe D. Parado-Estepa, Joana Joy Huervana and Michael Ray BurlasMarker-aided genetic stock management: prospects in Philippine Aquatic Biodiversity conservation and aquacultureMaria Rowena R. Romana-Eguia, Minoru Ikeda and Akihiro KijimaFeed formulation for sustainable aquacultureRelicardo M. ColosoPotential of cowpea (Vigna unguiculata L.) meal as an alternativeprotein source in diets for giant freshwater prawn (Macrobrachium rosenbergii, de Man 1879)Frolan A. Aya, Maria Lourdes Cuvin-Aralar and Relicardo M. ColosoApplication of the United States Soybean Export Council program's soy-optimized floating feeds and low volume, high density cage aquaculture technologiesLevy Loreto L. Manalac, Michael Cremer, Hsiang Pin Lan and Lukas ManomaitisUtilization of sensors and SMS technology to remotely maintain thelevelof dissolved oxygen, salinity and temperature of fishpondsRodrigo C. Munoz, Reynan P. Calderon, Rudy C. Flores, Sisenando C. Masangcap, Jayson P.Angelesand Mark ColentavaReaching the poor through aquaculture: The case of technologyadoptionin rural communities at west central PhilippinesDidi B. BaticadosMarine biodiversity at the SEAFDEC/AQD research stations in IloiloandGuimaras, PhilippinesTeodora Uy BagarinaoTargeting essential gene utilizing RNA interference to protect theailing shrimp/prawn industry against WSSVJassy Mary S. Lazarte and Mary Beth B. ManingasABSTRACTS OF ORAL PRESENTATIONSSEAFDEC/AQD stock enhancement initiatives: releasestrategiesMa. Junemie Hazel Lebata-Ramos, Ellen Flor Doyola-Solis, Rema Sibonga, Joemel Sumbing, Jeff Bogart Abroguena, August Santillan and Mark DimzonResponsible shrimp culture through ecological approachEleonor A. TendenciaEstimation of energy budget of sea cucumber, Holothuria scabra, in integrated multi-trophic aquacultureSatoshi Watanabe, Masashi Kodama, Zenith Gaye A. Orozco, Joemel G. Sumbing, Schedar Rose M. Novilla and Ma. Junemie Hazel Lebata-RamosPost-larval rearing strategies in sandish (Holothuria scabra) cultureMarie Frances Nievales, Rema Sibonga and Harold FiguradoInduced breeding of giant trevally, maliputo (Caranx ignobilis)Ma. Theresa M. Mutia, Frederick B. Muyot and Myleen L. MagistradoSeed production of the blue swimming crab (Portunus pelagicus)Nonita S. Cabacaba and Jimmy E. SalamidaPotential genetic impacts of hatchery-based resource enhancementZubaida U. BasiaoGood aquaculture practices (GAqP): setting directions for harmonized regional standards - the Philippine experienceMark F. Matubang and Nelson A. LopezThe importance of mangroves to capture and culture fisheriesJurgenne H. PrimaveraStock enhancement? Why botherJose InglesABSTRACTS OF POSTER PRESENTATIONSResource assessment of sea cucumber in northern Iloilo, central PhilippinesPerry A. Alpasan and Romy A. BillonesOptimization of feeding and growth conditions for hatchery-bred larvae of indigenous Philippine silver perch, Leiopotherapon plumbeus (Perciformes: Terapontidae)Julie Andrea Añano, Frolan Aya, Mark Nell Corpuz and Maria Rowena R. Romana-EguiaDevelopment of a simple, rapid, cost-effective diagnostic kit for WSSVPocholo Mari T. Arabit, Amalea Dulcene D. Nicolasora, Patrick Ellis Z. Go, Christopher Marlowe A. Caipang and Mary Beth B. ManingasLarval rearing of silver therapon (Leiopotherapon plumbeus) in outdoor tanksFrolan A. Aya, Vicar Stella N. Nillasca, Mark Nell C. Corpuz and Luis Maria B. GarciaPreliminary trials on the effects of weaning and larval diets on survival and growth of silver therapon (Leiopotherapon plumbeus) larvaeFrolan A. Aya , Vicar Stella N. Nillasca and Luis Maria B. GarciaA preliminary study on the diagnosis of coral reef healthiness and establishment of coral replenishment technologyTeruo Azuma, Jemar Jed Roble Tan, Jacques Zarate, Jon Altamirano, Joey Gatus and Filipina SottoPreliminary assessment of the abundance and fishery of snapping shrimp (Alpheus sp.) in Calape, Bohol, PhilippinesJomel G. Baobao, Maria Danesa S. Rabia and Ernesto C. RulidaModelling the impact of different stress agents on Holothurian immunityLiudmila S. DolmatovaGrowth and survival of nile tilapia (Oreochromis niloticus) juveniles fed diets with varying levels of irradiated chitosanKristine Gonzales, Mark Nell Corpuz and Maria Rowena R. Romana-EguiaPerceptions on the effects of maritime activities on the Philippine aquatic ecosystemEnrique Java, Teresita Cruz and Isidro Yonggue HernandezPreliminary trials on the optimization of hormone dosages for induced breeding of Philippine silver perch, Leiopotherapon plumbeusMark Archei O. Javier, Frolan A. Aya and Maria Rowena R. Romana-EguiaDistribution and abundance of hard clam shells Meretrix meretrix along the coastal areas of Panguil bay, Lanao del Norte, PhilippinesCelestina Q. Jumawan , Rheino B. Palma and Renalyn O. SiaGrowth performance of brackishwater enhanced selected tilapia (BEST) reared in brackishwater pondsAnecito V. Labastida, Celestina Q. Jumawan, Antonio A. Abogado, Rheino B. Palma and Jerome J. SabilloFirst record of Laem-Singh virus in black tiger shrimp (Penaeus monodon) in the PhilippinesChristian Albert M. Cruz, Precious C. dela Cruz, Paul Christian D. Alcala, Florenz Giovanni M. Tagle, Erickson S. Santos, Mudjekeewis D. Santos and Mary Beth B. ManingasReproductive biology of christian crabs (Charybdis feriatus, Linnaeus, 1758) in San Miguel Bay, PhilippinesPlutomeo M. Nieves, Nelson R. Olfindo and Aldrin Mel MacaleShrimp metabolism: The roles of lactate dehydrogenase (c31), glycogen phosphorylase (c34) and protein kinase (PK) as revealed by RNA interferenceMaria Violeta R. Tare, Hidehiro Kondo, Ikuo Hirono and Mary Beth B. ManingasSUMMARY OF THE WORKSHOPANNEXESANNEX 1. Workshop CommitteesANNEX 2. Directory of Participants</div

11th International Coral Reef Symposium Proceedings

A defining theme of the 11th International Coral Reef Symposium was that the news for coral reef ecosystems are far from encouraging. Climate change happens now much faster than in an ice-age transition, and coral reefs continue to suffer fever-high temperatures as well as sour ocean conditions. Corals may be falling behind, and there appears to be no special silver bullet remedy. Nevertheless, there are hopeful signs that we should not despair. Reef ecosystems respond vigorously to protective measures and alleviation of stress. For concerned scientists, managers, conservationists, stakeholders, students, and citizens, there is a great role to play in continuing to report on the extreme threat that climate change represents to earth’s natural systems. Urgent action is needed to reduce CO2 emissions. In the interim, we can and must buy time for coral reefs through increased protection from sewage, sediment, pollutants, overfishing, development, and other stressors, all of which we know can damage coral health. The time to act is now. The canary in the coral-coal mine is dead, but we still have time to save the miners. We need effective management rooted in solid interdisciplinary science and coupled with stakeholder buy in, working at local, regional, and international scales alongside global efforts to give reefs a chance.https://nsuworks.nova.edu/occ_icrs/1000/thumbnail.jp

The Whitworthian 1963-1964

The Whitworthian student newspaper, September 1963-May 1964.https://digitalcommons.whitworth.edu/whitworthian/1047/thumbnail.jp