digraph architecture {
  layout="neato";
  node [fontname = "Helvetica"];
  edge [fontname = "Helvetica"];	splines=true;
  overlap=false;
  nodesep="0.2";
  ranksep="0.4";
  label="Architecture";
  labelloc="t";
  fontname="Lato";
  node [ shape="plaintext" style="filled, rounded" fontname="Lato" margin=0.2  shape="oval"];
  edge [ fontname="Lato" color="#2B303A"];

  root[label="Architectural\nConcerns"];

  { node[fillcolor="#faaaaa" style="filled" fontcolor="white"]
    sec[label="Security"];
    main[label="Maintainability"];
    port[label="Portability"];
    func[label="Functional\nSuitability"];
    perf[label="Performance\nEfficiency"];
    comp[label="Compatibility"];
    use[label="Usability"];
    rel[label="Reliability"];
  };

  { node[fillcolor="#faa42f" style="filled" fontcolor="white"]
  };

  { node[fillcolor="#ffea50" style="filled" fontcolor="black" shape="oval"]
      port_01[label="Adaptability"];
      port_02[label="Installability"];
      port_03[label="Replaceability"];
      sec_01[label="Confidentiality"];
      sec_02[label="Integrity"];
      sec_03[label="Non-repudiation"];
      sec_04[label="Accountability"];
      sec_05[label="Authenticity"];
      main_01[label="Modularity"];
      main_02[label="Reusability"];
      main_03[label="Analysability"];
      main_04[label="Modifiability"];
      main_05[label="Testability"];
      func_01[label="Completeness"];
      func_02[label="Correctness"];
      func_03[label="Appropriateness"];
      perf_01[label="Time\nbehaviour"];
      perf_02[label="Resource\nutilisation"];
      perf_03[label="Capacity"];
      comp_01[label="Co-existence"];
      comp_02[label="Interoperability"];
      use_01[label="Recognisability"];
      use_02[label="Learnability"];
      use_03[label="Operability"];
      use_04[label="Error\nProtection"];
      use_05[label="UI aesthetics"];
      use_06[label="Accessibility"];
      rel_01[label="Maturity"];
      rel_02[label="Availability"];
      rel_03[label="Fault\nTolerance"];
      rel_04[label="Recoverability"];
    };

  root -> sec
  sec -> sec_01
  sec -> sec_02
  sec -> sec_03
  sec -> sec_04
  sec -> sec_05

  root -> main
  main -> main_01
  main -> main_02
  main -> main_03
  main -> main_04
  main -> main_05

  root -> port
  port -> port_01
  port -> port_02
  port -> port_03

  root -> func
  func -> func_01
  func -> func_02
  func -> func_03

  root -> perf
  perf -> perf_01
  perf -> perf_02
  perf -> perf_03

  root -> comp
  comp -> comp_01
  comp -> comp_02

  root -> use
  use -> use_01
  use -> use_02
  use -> use_03
  use -> use_04
  use -> use_05
  use -> use_06

  root -> rel
  rel -> rel_01
  rel -> rel_02
  rel -> rel_03
  rel -> rel_04

}